【转】C#使用ESC指令控制POS打印机打印小票

 .前言

 C#打印小票可以与普通打印机一样，调用PrintDocument实现。也可以发送标注你的ESC指令实现。由于 调用PrintDocument类时，无法操作使用串口或TCP/IP接口连接的pos打印机，并且无法发送控制指令实现pos打印机的切纸、走纸等动作。因此个人建议使用ESC指令进行打印会更通用。

 本类需要调用 ImageProcessor.cs

 .POS机打印小票ReceiptHelper
 using System;

 using System.Collections.Generic;

 using System.Text;

 using System.Runtime.InteropServices;

 using System.Threading;

 using System.Drawing;

 using System.Management;

 using System.IO;

 using LaisonTech.MediaLib;

 using LaisonTech.CommonBLL;

 using Microsoft.Win32.SafeHandles;

 namespace LaisonTech.MediaLib

 {

 #region 结构体定义

     [StructLayout(LayoutKind.Sequential)]

     public struct OVERLAPPED

     {

         int Internal;

         int InternalHigh;

         int Offset;

         int OffSetHigh;

         int hEvent;

     };

     [StructLayout(LayoutKind.Sequential)]

     public struct PRINTER_DEFAULTS

     {

         public int pDatatype;

         public int pDevMode;

         public int DesiredAccess;

     }

     /// <summary>

     /// 对齐方式

     /// </summary>

     public enum eTextAlignMode

     {

         Left = ,

         Middle = ,

         Right = 

     }

 #endregion

     /// <summary>

     /// 小票打印类

 /// 使用方法:

 /// 1 GetPrinterList获取已经安装的所有打印机列表.

 ///  Open 打开指定打印机

 /// 2 控制打印机动作、执行打印内容之前，必须先调用StartPrint，准备向打印机发送控制指令

 /// 3 调用SetLeft, SetBold, SetAlignMode, SetFontSize ... ...设置打印参数

 /// 4  PrintText 打印内容.注意：打印该行内容后会自动换行(本类会在该行内容末尾添加一个换行符)

 ///   PrintImageFile 或 PrintBitMap打印图片

 /// 5 控制指令和打印内容都发送完毕后,调用 EndPrint执行真正打印动作

     /// 6 退出程序前调用Close

     /// </summary>

     public class ReceiptHelper

     {

         #region 指令定义

         private static Byte[] Const_Init = new byte[] { 0x1B, 0x40,

             0x20, 0x20, 0x20, 0x0A,

             0x1B, 0x64,0x10};

         //设置左边距

         private const string Const_SetLeft = "1D 4C ";

         //设置粗体

         private const string Const_SetBold = "1B 45 ";

         private const String Const_Bold_YES = "";

         private const String Const_Bold_NO = "";

         //设置对齐方式

         private const string Const_SetAlign = "1B 61 ";

         private const String Const_Align_Left = "";

         private const String Const_Align_Middle = "";

         private const String Const_Align_Right = "";

         //设置字体大小,与 SetBigFont 不能同时使用

         private const string Const_SetFontSize = "1D 21 ";

         //设置是否大字体,等同于 SetFontSize = 2

         //private const String Const_SetBigFontBold = "1B 21 38";

         //private const String Const_SetBigFontNotBold = "1B 21 30";

         //private const String Const_SetCancelBigFont = "1B 21 00";

         /// <summary>

         /// 打印并走纸

         /// </summary>

         private static Byte[] Const_Cmd_Print = new byte[] { 0x1B, 0x4A, 0x00 };

         //走纸

         private const string Const_FeedForward = "1B 4A ";

         private const string Const_FeedBack = "1B 6A ";

         //切纸

         private static Byte[]  Const_SetCut = new byte[] { 0x1D, 0x56, 0x30};

         //查询打印机状态

         private static Byte[] Const_QueryID = new byte[] { 0x1D, 0x67, 0x61};

         //回复帧以 ID 开头

         private static String Const_ResponseQueryID = "ID";

         /// <summary>

         /// 设置图标的指令

         /// </summary>

         private static Byte[] Const_SetImageCommand = new Byte[] { 0x1B, 0x2A, 0x21 };

 #endregion

         #region 常量定义

         /// <summary>

         /// 最大字体大小

         /// </summary>

         public const Int32 Const_MaxFontSize = ;

         /// <summary>

         /// 最大走纸距离

         /// </summary>

         public const Int32 Const_MaxFeedLength = ;

         /// <summary>

         /// 最大高宽

         /// </summary>

         public const Int32 Const_MaxImageLength = ;

         /// <summary>

         /// 每次通信最多打印的行数

         /// </summary>

         public const Int32 Const_OncePrintRowCount = ;

         public const Int32 Const_BrightnessGate = ;

         /// <summary>

         /// 无效句柄

         /// </summary>

         public const Int32 Const_InvalidHandle = -;

         #endregion

         #region 私有成员

         /// <summary>

         /// 打印机句柄

         /// </summary>

         private int m_Handle = -;

         /// <summary>

         /// 是否已经初始化

         /// </summary>

         private Boolean m_Inited = false;

         #endregion

         #region 私有函数

         [DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter,

             out Int32 hPrinter, IntPtr pd);

         [DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool StartDocPrinter(Int32 hPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);

         [DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool EndDocPrinter(Int32 hPrinter);

         [DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool StartPagePrinter(Int32 hPrinter);

         [DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool EndPagePrinter(Int32 hPrinter);

         [DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool WritePrinter(Int32 hPrinter, Byte[] pBytes, Int32 dwCount, out Int32 dwWritten);

         [DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]

         public static extern bool ClosePrinter(Int32 hPrinter);

         /// <summary>

         /// 发送指令

         /// </summary>

         /// <param name="cmd"></param>

         /// <returns></returns>

         private Boolean SendCommand(Byte[] cmd)

         {

             if (m_Handle == Const_InvalidHandle || cmd == null || cmd.Length < )

             {

                 return false;

             }

             int writelen = ;

             Boolean bl = WritePrinter(m_Handle, cmd, cmd.Length, out writelen);

             if (!bl) return false;

             return (writelen >= cmd.Length);

         }

         /// <summary>

         /// 发送文本格式的指令

         /// </summary>

         /// <param name="cmd"></param>

         /// <returns></returns>

         private Boolean SendCommand(String hexstrcmd)

         {

             if (m_Handle == Const_InvalidHandle || hexstrcmd == null || hexstrcmd.Length < )

             {

                 return false;

             }

             byte[] mybyte = null;

             Boolean bl = DataFormatProcessor.HexStringToBytes(hexstrcmd, out mybyte);

             bl = SendCommand(mybyte);

             return bl;

         }

         #endregion

         #region 内部处理 - 打印图片

         /// <summary>

         /// 把图片转换为指令字节,图片最大高宽不能超过480

         /// </summary>

         /// <param name="image"></param>

         /// <param name="bmpbytes"></param>

         /// <returns></returns>

         public static Boolean LoadImage(Bitmap image,

             ref Byte[] bitarray,ref Int32 datawidth,ref Int32 dataheight)

         {

             Int32 newwidth = ;

             Int32 newheight = ;

             Bitmap destimage = image;

             Boolean bl = false;

             //如果高度超过范围,或宽度超过范围,需要进行缩小

             if (image.Width > Const_MaxImageLength || image.Height > Const_MaxImageLength)

             {

                 //按照高度和宽度，较大的那一边，进行缩放

                 if (image.Width > image.Height)

                 {

                     newwidth = Const_MaxImageLength;

                     newheight = (Int32)(image.Height * newwidth / (float)image.Width);

                 }

                 else

                 {

                     newheight = Const_MaxImageLength;

                     newwidth = (Int32)(newheight * image.Width / (float)image.Height);

                 }

                 bl = ImageProcessor.ResizeImage(image, newwidth, newheight, ref destimage);

             }

             //把数据转换为字节数组

             bl = GetBitArray(image, ref bitarray, ref datawidth, ref dataheight);

             return bl;

         }

         /// <summary>

         /// 把图片转换为指令字节,图片最大高宽不能超过480

         /// 如果图片的高度不是24的整数倍,则修改为24的整数倍

         /// </summary>

         /// <param name="image"></param>

         /// <param name="bmpbytes"></param>

         /// <returns></returns>

         public static Boolean LoadImageFromFile(String imagefilename, ref Byte[] bmpbytes,

             ref Int32 width, ref Int32 height)

         {

             Bitmap img = ImageProcessor.LoadBitImage(imagefilename);

             if (img == null)

             {

                 return false;

             }

             Boolean bl = LoadImage(img, ref bmpbytes, ref width, ref height);

             return bl;

         }

         /// <summary>

         /// 把图片转换为位图数组,每个字节的每个比特位,对应当前像素 是否需要打印

         /// </summary>

         /// <param name="img"></param>

         /// <param name="allbitary"></param>

         /// <returns></returns>

         public static Boolean GetBitArray(Bitmap img,

             ref Byte[] allbitary, ref Int32 width, ref Int32 height)

         {

             if (img == null)

             {

                 return false;

             }

             //ESC指令格式规定：

             //1 打印图片时，每条指令最多只打印24行;不足24行的,也要用全0填充满数据字节

             //2 打印24行数据时，按照光栅模式纵向获取数据

             //  即先获取所有x=0的点（第0列）转换为3个字节；

             //  再获取所有x=1的点转换为3个字节；...直到获取到最右侧一列的点

             //3 打印完当前24行数据后，再获取后续24行的数据内容,直到所有的数据获取完毕

             //获取亮度数组

             Boolean[] briary = null;

             Boolean bl = ImageProcessor.ToBooleanArray(img, Const_BrightnessGate, ref briary);

             if (!bl)

             {

                 return false;

             }

             height = img.Height;//如果图像高度不是24整数倍,设置为24的整数倍       

             if (height % Const_OncePrintRowCount != )

             {

                 height = height + Const_OncePrintRowCount - height % Const_OncePrintRowCount;

             }

             width = img.Width;//如果图像宽度不是8的整数倍,设置为8的整数倍

             if (width %  != )

             {

                 width = width +  - width % ;

             }

             Int32 bytelen = height * width / ;//每个像素对应1个比特位,因此总字节数=像素位数/8

             allbitary = new Byte[bytelen];

             Int32 byteidxInCol = ;//当前列里首个像素,在目标字节数组里的下标

             Int32 byteidx = ;//当前像素在目标数组里的字节下标

             Int32 bitidx = ;//当前像素在目标数组里当前字节里的比特位下标

             Int32 pixidxInCol = ;//当前像素在当前列里的第几个位置

             Int32 pixidx = ;//当前像素在原始图片里的下标

             Int32 rowidx = ; //当前 处理的像素点所在行,不能超过 图像高度

             Int32 curprocrows = ;//当前需要处理的行数量

             while (rowidx < height)

             {

                 //按照纵向次序,把当前列的24个数据,转换为3个字节

                 for (Int32 colidx = ; colidx < img.Width; ++colidx)

                 {

                     //如果当前还剩余超过24行没处理,处理24行

                     if (rowidx + Const_OncePrintRowCount <= img.Height)

                     {

                         curprocrows = Const_OncePrintRowCount;

                     }

                     else

                     {

                         //已经不足24行,只处理剩余行数

                         curprocrows = img.Height - rowidx;

                     }

                     pixidxInCol = ; //本列里从像素0开始处理

                     for (Int32 y = rowidx; y < rowidx + curprocrows; ++y)

                     {

                         //原始图片里像素位置

                         pixidx = y * img.Width + colidx;

                         //获取当前像素的亮度值.如果当前像素是黑点,需要把数组里的对应比特位设置为1

                         if (briary[pixidx])

                         {

                             bitidx =  - pixidxInCol % ;//最高比特位对应首个像素.最低比特位对应末个像素

                             byteidx = byteidxInCol + pixidxInCol / ; //由于最后一段可能不足24行,因此不能使用byteidx++

                             DataFormatProcessor.SetBitValue(bitidx, true, ref allbitary[byteidx]);

                         }

                         pixidxInCol++;

                     }

                     byteidxInCol += ;//每列固定24个像素,3个字节

                 }

                 rowidx += Const_OncePrintRowCount;

             }

             return true;

         }

         #endregion

         #region 公开函数

         private static ReceiptHelper m_instance = new ReceiptHelper();

         /// <summary>

         /// 当前使用的打印机名称

         /// </summary>

         public String PrinterName

         {

             get;private set;

         }

         /// <summary>

         /// 单件模式

         /// </summary>

         /// <returns></returns>

         public static ReceiptHelper GetInstance()

         {

             return m_instance;

         }

         /// <summary>

         /// 获取本机安装的所有打印机

         /// </summary>

         /// <returns></returns>

         public static List<String> GetPrinterList()

         {

             List<String> ret = new List<String>();

             if (PrinterSettings.InstalledPrinters.Count < )

             {

                 return ret;

             }

             foreach (String printername in PrinterSettings.InstalledPrinters)

             {

                 ret.Add(printername);

             }

             return ret;

         }

         /// <summary>

         /// 打开打印机

         /// </summary>

         /// <param name="printername"></param>

         /// <returns></returns>

         public Boolean Open(String printername)

         {

             if (m_Inited)

             {

                 return true;

             }

             Boolean bl = OpenPrinter(printername.Normalize(), out m_Handle, IntPtr.Zero); 

             m_Inited = (bl && m_Handle != ); 

             return true;

         }

         /// <summary>

         /// 开始打印，在打印之前必须调用此函数

         /// </summary>

         /// <returns></returns>

         public Boolean StartPrint()

         {

             if (!m_Inited)

             {

                 return false;

             }

             DOCINFOA di = new DOCINFOA();

             di.pDocName = "My C#.NET RAW Document";

             di.pDataType = "RAW";

             //Start a document.

             Boolean bl = StartDocPrinter(m_Handle, , di);

             if (!bl)

             {

                 return false;

             }

             // Start a page.

             bl = StartPagePrinter(m_Handle);

             return bl;

         }

         /// <summary>

         /// 结束打印，在打印结束之后必须调用此函数

         /// </summary>

         /// <returns></returns>

         public Boolean EndPrint()

         {

             if (!m_Inited)

             {

                 return false;

             }

             Boolean bl = EndPagePrinter(m_Handle);

             bl = EndDocPrinter(m_Handle);

             return bl;

         }

         /// <summary>

         /// 销毁

         /// </summary>

         /// <returns></returns>

         public Boolean Close()

         {

             if (!m_Inited)

             {

                 return true;

             }

             m_Inited = false;

             //关闭设备句柄

             ClosePrinter(m_Handle);

             m_Handle = -;

             return true;

         }

         /// <summary>

         /// 打印文本.在调用本函数之前必须先调用正确的 设置字体、左边距

         /// </summary>

         /// <param name="content"></param>

         /// <returns></returns>

         public Boolean PrintText(String content)

         {

             if (!m_Inited)

             {

                 return false;

             }

             byte[] bytes = null;

             if (content.Length < )

             {

                 content =  "  ";

             }

             if (content[content.Length - ] != (char)0x0D &&

                 content[content.Length - ] != (char)0x0A)

             {

                 content = content + (char)0x0A;

             }

             bytes = DataFormatProcessor.StringToBytes(content);

             bool bl = SendCommand(bytes);

             return bl;

         }

         /// <summary>

         /// 设置对齐方式

         /// </summary>

         /// <param name="left"></param>

         /// <returns></returns>

         public bool SetAlignMode(eTextAlignMode alignmode)

         {

             if (!m_Inited)

             {

                 return false;

             }

             String code = String.Empty;

             switch (alignmode)

             {

                 case eTextAlignMode.Left:

                     code = Const_Align_Left;

                     break;

                 case eTextAlignMode.Middle:

                     code = Const_Align_Middle;

                     break;

                 case eTextAlignMode.Right:

                     code = Const_Align_Right;

                     break;

                 default:

                     code = Const_Align_Left;

                     break;

             }

             //注意：先低字节后高字节

             string str = Const_SetAlign + code;

             bool bl = SendCommand(str);

             return bl;

         }

         /// <summary>

         /// 设置左边距

         /// </summary>

         /// <param name="left"></param>

         /// <returns></returns>

         public bool SetLeft(int left)

         {

             if (!m_Inited)

             {

                 return false;

             }

             //注意：先低字节后高字节

             String hexstr = left.ToString("X4");

             string str = Const_SetLeft + hexstr.Substring(, ) + hexstr.Substring(, );

             bool bl = SendCommand(str);

             return bl;

         }

         /// <summary>

         /// 设置粗体

         /// </summary>

         /// <param name="bold"></param>

         /// <returns></returns>

         public Boolean SetBold(Boolean bold)

         {

             if (!m_Inited)

             {

                 return false;

             }

             //注意：先低字节后高字节

             String str = String.Empty;

             if (bold)

             {

                 str = Const_SetBold + Const_Bold_YES;

             }

             else

             {

                 str = Const_SetBold + Const_Bold_NO;

             }

             bool bl = SendCommand(str);

             return bl;

         }

         /// <summary>

         /// 切纸

         /// </summary>

         /// <returns></returns>

         public bool Cut()

         {

             if (!m_Inited)

             {

                 return false;

             }

             bool bl = SendCommand(Const_SetCut);

             return bl;

         }

         /// <summary>

         /// 打印图片

         /// </summary>

         /// <param name="bitmap"></param>

         /// <returns></returns>

         public bool PrintImageFile(String imgfilename)

         {

             if (!m_Inited)

             {

                 return false;

             }

             Bitmap img = ImageProcessor.LoadBitImage(imgfilename);

             if (img == null)

             {

                 return false;

             }

             Boolean bl = PrintBitmap(img);

             return bl;

         }

         /// <summary>

         /// 打印图片

         /// </summary>

         /// <param name="bitmap"></param>

         /// <returns></returns>

         public bool PrintBitmap(Bitmap bitmap)

         {

             if (!m_Inited)

             {

                 return false;

             }

             if (bitmap == null ||

                 bitmap.Width > Const_MaxImageLength ||

                 bitmap.Height > Const_MaxImageLength)

             {

                 return false;

             }

             Byte[] bitary = null;

             Int32 width = ;

             Int32 height = ;

             Boolean bl = GetBitArray(bitmap, ref bitary, ref width, ref height);

             bl = PrintBitmapBytes(bitary, bitmap.Width, bitmap.Height);

             return bl;

         }

         /// <summary>

         /// 打印图片

         /// </summary>

         /// <param name="bitmap"></param>

         /// <returns></returns>

         public bool PrintBitmapBytes(Byte[] imgbitarray, Int32 width, Int32 height)

         {

             if (!m_Inited)

             {

                 return false;

             }

             Int32 bytes = width * height / ;

             //检查是否尺寸符合要求

             if (width > Const_MaxImageLength || height > Const_MaxFeedLength ||

                 width <  || height <  ||

                 imgbitarray == null)

             {

                 return false;

             }

             //每次获取24行的数据进行发送,这24行的字节数

             Int32 blockbytes = width * Const_OncePrintRowCount / ;

             if (blockbytes < )

             {

                 return false;

             }

             Boolean bl = false;

             //一共需要发送的块数量

             Int32 blocks = imgbitarray.Length / blockbytes;

             //每次发送的数据字节数 = 1B 2A 21 2字节长度 +　数据内容

             Byte[] cmdbytes = new Byte[ + blockbytes];

             //指令

             Array.Copy(Const_SetImageCommand, cmdbytes, );

             //数据长度,即 每行的点数

             DataFormatProcessor.Int16ToBytes(width, ref cmdbytes, );

             //数据内容

             for (Int32 blockidx = ; blockidx < blocks; ++blockidx)

             {

                 Array.Copy(imgbitarray, blockidx * blockbytes, cmdbytes, , blockbytes);

                 //发送当前指令

                 bl = SendCommand(cmdbytes);

                 if (!bl) return false;

                 //休眠20毫秒

                 Thread.Sleep();

                 //发送 打印指令

                 bl = SendCommand(Const_Cmd_Print);

                 if (!bl) return false;

             }

             return bl;

         }

         /// <summary>

         /// 走纸

         /// </summary>

         /// <param name="length"></param>

         /// <returns></returns>

         public bool Feed(int length)

         {

             if (!m_Inited)

             {

                 return false;

             }

             if (length < )

                 length = ;

             if (length > Const_MaxFeedLength)

             {

                 length = Const_MaxFeedLength;

             }

             string len = length.ToString("X2");

             len = Const_FeedForward + len;

             bool bl = SendCommand(len);

             return bl;

         }

         /// <summary>

         /// 回退走纸

         /// </summary>

         /// <param name="length"></param>

         /// <returns></returns>

         public bool FeedBack(int length)

         {

             if (!m_Inited)

             {

                 return false;

             }

             if (length < )

                 length = ;

             if (length > Const_MaxFeedLength)

             {

                 length = Const_MaxFeedLength;

             }

             string len = length.ToString("X2");

             len = Const_FeedBack + len;

             bool bl = SendCommand(len);

             return bl;

         }

         /// <summary>

         /// 设置字体大小.本函数不可与SetBigFont同时使用

         /// </summary>

         /// <param name="sizerate">大小倍率,取值范围 1 - 8</param>

         /// <returns></returns>

         public bool SetFontSize(Int32 sizerate)

         {

             if (!m_Inited)

             {

                 return false;

             }

             if (sizerate < )

             {

                 sizerate = ;

             }

             if (sizerate > Const_MaxFontSize)

             {

                 sizerate = Const_MaxFontSize;

             }

             sizerate--;

             String sizecodestr = Const_SetFontSize + sizerate.ToString("X1") + sizerate.ToString("X1");

             bool bl = SendCommand(sizecodestr);

             return bl;

         }

         #endregion

     }

 }

 .图像处理 ImageProcessor
 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Drawing;

 using LaisonTech.CommonBLL;

 using System.Drawing.Imaging;

 using System.IO;

 using System.Drawing.Drawing2D;

 using System.Windows.Forms;

 using AForge.Imaging.Filters;

 namespace LaisonTech.MediaLib

 {

     /// <summary>

     /// 图片格式

     /// </summary>

     public enum ePictureFileFormat

     {

         Bmp = ,

         Gif = ,

         Icon = ,

         Jpeg = ,

         Png = ,

     }

     /// <summary>

     /// 转为灰度图像的方式

     /// </summary>

     public enum eGrayMode

     {

         /// <summary>

         /// 算数平均

         /// </summary>

         ArithmeticAverage = ,

         /// <summary>

         /// 加权平均

         /// </summary>

         WeightedAverage = ,

     }

     /// <summary>

     /// 比较2个图片的指定区域范围,像素的相同类型

     /// </summary>

     public enum eAreaDifferentType

     {

         /// <summary>

         /// 所有像素都相同

         /// </summary>

         AllSame = ,

         /// <summary>

         /// 所有像素都不同

         /// </summary>

         AllDifferent = ,

         /// <summary>

         /// 部分相同部分不同

         /// </summary>

         Partial = ,

     }

     /// <summary>

     /// 图片文件处理

     /// </summary>

     public class ImageProcessor

     {

         #region 常量定义

         public const Byte Const_BrightnessWhite = ;

         public const Byte Const_BrightnessBlack = ;

         /// <summary>

         /// 比较结果的图片里，亮度相同部分的填充颜色

         /// </summary>

         public static Color Const_SameBrightnessColor = Color.Black;

         /// <summary>

         /// 比较结果的图片里，亮度相同部分的填充颜色

         /// </summary>

         public static Color Const_DifferentBrightnessColor = Color.White;

         public const Byte Const_BlackBrightness = ;

         public const Byte Const_WhiteBrightness = ;

         public const Int32 Const_MaxBrightness = ;

         public const Int32 Const_MinBrightness = -;

         /// <summary>

         /// 亮度的中间值

         /// </summary>

         public const Int32 Const_MiddleBrightness = ;

         #endregion

         #region 屏幕截图,打印

         /// <summary>

         /// 获取屏幕分辨率

         /// </summary>

         /// <param name="width"></param>

         /// <param name="height"></param>

         public static void GetScreenSize(ref Int32 width, ref Int32 height)

         {

             height = Screen.PrimaryScreen.Bounds.Height;

             width = Screen.PrimaryScreen.Bounds.Width;

         }

         /// <summary>

         ///截图指定控件上显示的内容

         /// </summary>

         /// <param name="ctrl"></param>

         /// <returns></returns>

         public static Image CaptureControlImage(Control ctrl)

         {

             if (ctrl == null)

             {

                 return null;

             }

             Control parent = ctrl;

             if (ctrl.Parent != null)

             {

                 parent = ctrl.Parent;

             }

             Point screenPoint = parent.PointToScreen(ctrl.Location);

             Image ret = new Bitmap(ctrl.Width, ctrl.Height);

             Graphics g = Graphics.FromImage(ret);

             g.CopyFromScreen(screenPoint.X, screenPoint.Y,

                 , , ctrl.Size);

             g.DrawImage(ret, , );

             return ret;

         }

         #endregion

         #region 装载图片

         /// <summary>

         /// 装载图像文件

         /// </summary>

         /// <param name="filename"></param>

         /// <returns></returns>

         public static Image LoadImage(String filename)

         {

             //Boolean bl = FileProcessor.FileExist(filename);

             //if (!bl)

             //{

             //    return null;

             //}

             //Bitmap image = (Bitmap)Bitmap.FromFile(filename);

             //return image;

             //以上方法会导致图片文件被锁定,无法删除移动

             Byte[] photodata = null;

             Boolean bl = FileProcessor.FileExist(filename);

             if (!bl)

             {

                 return null;

             }

             bl = FileProcessor.ReadFileBytes(filename, out photodata);

             if (!bl)

             {

                 return null;

             }

             MemoryStream ms = null;

             Image myImage = null;

             try

             {

                 ms = new MemoryStream(photodata);

                 myImage = Bitmap.FromStream(ms);

                 ms.Close();

             }

             catch (System.Exception ex)

             {

                 Console.WriteLine("LoadImage error:" + ex.Message);

                 myImage = null;

             }

             return myImage;

         }

         /// <summary>

         /// 装载图像文件

         /// </summary>

         /// <param name="filename"></param>

         /// <returns></returns>

         public static Bitmap LoadBitImage(String filename)

         {

             Bitmap ret = (Bitmap)LoadImage(filename);

             return ret;

         }

         /// <summary>

         /// 保存图片到指定路径

         /// </summary>

         /// <param name="img"></param>

         /// <param name="filename"></param>

         /// <returns></returns>

         public static Boolean SaveImage(Image img, String filename)

         {

             FileProcessor.DeleteFile(filename);

             if (img == null)

             {

                 return false;

             }

             //获取保存图片的路径，如果路径不存在，新建

             String folder = FileProcessor.GetDirectoryName(filename);

             if (!FileProcessor.DirectoryExist(folder))

             {

                 FileProcessor.CreateDirectory(folder);

             }

             img.Save(filename);

             Boolean bl = FileProcessor.FileExist(filename);

             return bl;

         }

         #endregion

         #region 转换图片格式

         /// <summary>

         /// 转换图片格式

         /// </summary>

         /// <param name="bmpfilename"></param>

         /// <param name="jpgfilename"></param>

         /// <returns></returns>

         public static Boolean BmpToJpg(String bmpfilename, String jpgfilename)

         {

             Boolean bl = ChangeFileFormat(bmpfilename, jpgfilename, ePictureFileFormat.Jpeg);

             return bl;

         }

         /// <summary>

         /// 转换图片格式

         /// </summary>

         /// <param name="srcfilename"></param>

         /// <param name="destfilename"></param>

         /// <param name="destformat"></param>

         /// <returns></returns>

         public static Boolean ChangeFileFormat(String srcfilename, String destfilename, ePictureFileFormat destformat)

         {

             Boolean bl = FileProcessor.FileExist(srcfilename);

             if (!bl)

             {

                 return false;

             }

             Image image = Image.FromFile(srcfilename);

             ImageFormat IFMT = null;

             switch (destformat)

             {

                 case ePictureFileFormat.Bmp:

                     IFMT = ImageFormat.Bmp;

                     break;

                 case ePictureFileFormat.Gif:

                     IFMT = ImageFormat.Gif;

                     break;

                 case ePictureFileFormat.Icon:

                     IFMT = ImageFormat.Icon;

                     break;

                 case ePictureFileFormat.Jpeg:

                     IFMT = ImageFormat.Jpeg;

                     break;

                 case ePictureFileFormat.Png:

                     IFMT = ImageFormat.Png;

                     break;

                 default:

                     IFMT = ImageFormat.Jpeg;

                     break;

             }

             image.Save(destfilename, IFMT);

             image.Dispose();

             bl = FileProcessor.FileExist(destfilename);

             if (!bl)

             {

                 return false;

             }

             Int32 filelen = FileProcessor.GetFileLength(destfilename);

             return (filelen > );

         }

         /// <summary>

         /// 变成黑白图

         /// </summary>

         /// <param name="srcbitmap">原始图</param>

         /// <param name="mode">模式。0:加权平均  1:算数平均</param>

         /// <returns></returns>

         public static Bitmap ToGray(Bitmap bitmap, eGrayMode mode = eGrayMode.ArithmeticAverage)

         {

             if (bitmap == null)

             {

                 return null;

             }

             int width = bitmap.Width;

             int height = bitmap.Height;

             byte newColor = ;

             try

             {

                 BitmapData srcData = bitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* curpix = (byte*)srcData.Scan0.ToPointer();

                     if (mode == eGrayMode.ArithmeticAverage)// 算数平均

                     {

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 newColor = (byte)((float)(curpix[] + curpix[] + curpix[]) / 3.0f);

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix += ;

                             }

                             curpix += srcData.Stride - width * ;

                         }

                     }

                     else

                     {

                         // 加权平均

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 newColor = (byte)((float)curpix[] * 0.114f + (float)curpix[] * 0.587f + (float)curpix[] * 0.299f);

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix += ;

                             }

                             curpix += srcData.Stride - width * ;

                         }

                     }

                     bitmap.UnlockBits(srcData);

                 }

             }

             catch

             {

                 bitmap = null;

             }

             return bitmap;

         }

         /// <summary>

         /// 获取一幅图片对应的所有像素亮度数组

         /// </summary>

         /// <param name="bitmap">原始图</param>

         /// <param name="brightnessary">亮度值数组</param>

         /// <param name="mode">模式。0:加权平均  1:算数平均</param>

         /// <returns></returns>

         public static Boolean GetImageBrightness(Bitmap bitmap, ref Byte[] brightnessary,

             eGrayMode mode = eGrayMode.WeightedAverage)

         {

             if (bitmap == null)

             {

                 return false;

             }

             int width = bitmap.Width;

             int height = bitmap.Height;

             if (width <  || height < )

             {

                 return false;

             }

             brightnessary = new Byte[width * height];

             Boolean bl = false;

             Int32 rowredundancy = ;//每一行像素，对应的数组长度 与 实际像素点数的差值

             Int32 pixidx = ;//像素下标

             try

             {

                 BitmapData srcData = bitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 rowredundancy = srcData.Stride - width * ;//每行末尾还有这么多的冗余字节

                 unsafe

                 {

                     byte* curpix = (byte*)srcData.Scan0.ToPointer();

                     if (mode == eGrayMode.ArithmeticAverage)// 算数平均

                     {

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 brightnessary[pixidx] = (byte)((float)(curpix[] + curpix[] + curpix[]) / 3.0f);

                                 ++pixidx;

                                 curpix += ;

                             }

                             curpix += rowredundancy;

                         }

                     }

                     else

                     {

                         // 加权平均

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 brightnessary[pixidx] = (byte)((float)curpix[] * 0.114f + (float)curpix[] * 0.587f + (float)curpix[] * 0.299f);

                                 ++pixidx;

                                 curpix += ;

                             }

                             curpix += rowredundancy;

                         }

                     }

                     bitmap.UnlockBits(srcData);

                 }

                 bl = true;

             }

             catch(Exception ex)

             {

                 bl = false;

                 Console.WriteLine("Get brightness ary error:" + ex.Message);

             }

             return bl;

         }

         /// <summary>

         /// 变成黑白图,每个元素都是一个像素的亮度

         /// </summary>

         /// <param name=" bitmap ">原始图</param>

         /// <param name=" graybitmap ">黑白图</param>

         /// <param name=" brightnessbytes ">黑白所有像素点亮度</param>

         /// <param name="mode">模式。0:加权平均  1:算数平均</param>

         /// <returns></returns>

         public static Boolean ToGray(Bitmap bitmap, ref Bitmap graybitmap, ref Byte[] brightnessbytes,

             eGrayMode mode = eGrayMode.WeightedAverage)

         {

             if (bitmap == null)

             {

                 return false;

             }

             brightnessbytes = new Byte[bitmap.Width * bitmap.Height];

             int width = bitmap.Width;

             int height = bitmap.Height;

             //Clone 可能引发 GDI+异常

             graybitmap = new Bitmap(bitmap);

             byte newColor = ;

             Int32 bytesidx = ;

             Boolean bl = false;

             try

             {

                 BitmapData srcData = graybitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* curpix = (byte*)srcData.Scan0.ToPointer();

                     if (mode == eGrayMode.ArithmeticAverage)// 算数平均

                     {

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 newColor = (byte)((float)(curpix[] + curpix[] + curpix[]) / 3.0f);

                                 brightnessbytes[bytesidx] = newColor;

                                 ++bytesidx;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix += ;

                             }

                             curpix += srcData.Stride - width * ;

                         }

                     }

                     else

                     {

                         // 加权平均

                         for (int y = ; y < height; y++)

                         {

                             for (int x = ; x < width; x++)

                             {

                                 newColor = (byte)((float)curpix[] * 0.114f + (float)curpix[] * 0.587f + (float)curpix[] * 0.299f);

                                 brightnessbytes[bytesidx] = newColor;

                                 ++bytesidx;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix[] = newColor;

                                 curpix += ;

                             }

                             curpix += srcData.Stride - width * ;

                         }

                     }

                     graybitmap.UnlockBits(srcData);

                 }

                 bl = true;

             }

             catch(Exception ex)

             {

                 graybitmap = null;

                 Console.WriteLine("ToGray error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 把图片转换为非黑即白的二色图.

         /// </summary>

         /// <param name="bitmap">原始图</param>

         /// <param name="brightnessGate">亮度门限.超过此亮度认为白点,否则认为黑点</param>

         /// <param name="bitary">每个像素点是否为黑点的数组</param>

         /// <param name="trueAsblack">true-每个元素黑点为true,白点为false; false-每个元素白点为true,黑点为false</param>

         /// <returns></returns>

         public static Boolean ToBooleanArray(Bitmap bitmap, Byte brightnessGate, ref Boolean[] bitary, Boolean trueAsblack = true)

         {

             if (bitmap == null)

             {

                 return false;

             }

             bitary = new Boolean[bitmap.Width * bitmap.Height];

             int width = bitmap.Width;

             int height = bitmap.Height;

             byte curcolor = ;

             Int32 pixidx = ;

             Boolean bl = false;

             try

             {

                 BitmapData srcData = bitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* curpix = (byte*)srcData.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             curcolor = (byte)((float)(curpix[] + curpix[] + curpix[]) / 3.0f);

                             if (trueAsblack)//true为黑点

                             {

                                 bitary[pixidx] = (curcolor < brightnessGate);

                             }

                             else

                             {

                                 //true为白点

                                 bitary[pixidx] = (curcolor > brightnessGate);

                             }

                             ++pixidx;                            

                             curpix += ;

                         }

                         curpix += srcData.Stride - width * ;

                     }

                     bitmap.UnlockBits(srcData);

                 }

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("ToGray error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 亮度差数组变成bool数组.true表示亮度不同,false表示亮度相同

         /// </summary>

         /// <param name="bridiffary">亮度差数组</param>

         /// <param name="brightnessGate">亮度门限.超过此亮度认为白点,否则认为黑点</param>

         /// <returns></returns>

         public static Boolean BrightnessToBoolean(Byte[] bridiffary, Byte brightnessGate, ref Boolean[] boolary)

         {

             if (bridiffary == null || bridiffary.Length < )

             {

                 return false;

             }

             boolary = new Boolean[bridiffary.Length];

             for (Int32 idx = ; idx < bridiffary.Length; ++idx)

             {

                 boolary[idx] = (bridiffary[idx] > brightnessGate);

             }

             return true;

         }

         #endregion

         #region 图片调整

         /// <summary>

         /// 调整亮度

         /// </summary>

         /// <param name="bitmap">原始图</param>

         /// <param name="degree">亮度,取值范围-255 - 255</param>

         /// <returns></returns>

         public static Bitmap SetBrightness(Bitmap srcbitmap, int brightnessOffset)

         {

             if (srcbitmap == null)

             {

                 return null;

             }

             CommonCompute.SetInt32Range(ref brightnessOffset, Const_MinBrightness, Const_MaxBrightness);

             int width = srcbitmap.Width;

             int height = srcbitmap.Height;

             Bitmap bitmap = (Bitmap)srcbitmap.Clone();

             try

             {

                 BitmapData data = bitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* curpix = (byte*)data.Scan0.ToPointer();

                     Int32 curcolor = ;

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             curcolor = curpix[] + brightnessOffset;

                             CommonCompute.SetInt32Range(ref curcolor, , Const_MaxBrightness);

                             curpix[] = (byte)curcolor;

                             curcolor = curpix[] + brightnessOffset;

                             CommonCompute.SetInt32Range(ref curcolor, , Const_MaxBrightness);

                             curpix[] = (byte)curcolor;

                             curcolor = curpix[] + brightnessOffset;

                             CommonCompute.SetInt32Range(ref curcolor, , Const_MaxBrightness);

                             curpix[] = (byte)curcolor;

                             curpix += ;

                         }

                         curpix += data.Stride - width * ;

                     }

                 }

                 bitmap.UnlockBits(data);

             }

             catch

             {

                 bitmap = null;

             }

             return bitmap;

         }

         /// <summary>

         /// 调整图像对比度

         /// </summary>

         /// <param name="bitmap">原始图</param>

         /// <param name="degree">对比度 0 - 100</param>

         /// <returns></returns>

         public static Bitmap SetContrast(Bitmap srcbitmap, int contrast)

         {

             if (srcbitmap == null)

             {

                 return null;

             }

             //对比度取值范围,0-100

             CommonCompute.SetInt32Range(ref contrast, , );

             Int32 curcolor = ;

             Bitmap bitmap = (Bitmap)srcbitmap.Clone();

             int width = bitmap.Width;

             int height = bitmap.Height;

             //调整对比度基本思路：0时，所有像素点的亮度都设置为中间值128

             //100 时，把亮度大于128的像素，亮度设置为255；小于128的设置为0

             //即:50时，保持不变；小于50，所有点的亮度向中间值128偏移；大于50，所有点亮度值向两端偏移

             //如果当前像素点的亮度是130, 对比度为50时，结果仍然要是130,此时rate为1.0

             //对比度为100时，结果要变成255，此时rate >= 128

             //对比度为0时，结果要变成128，此时rate = 0

             //因此可知对比度与rate的对应关系

             //对比度:  0  50  100

             //rate  :  0  1   127              

             double rate = ;

             if (contrast == )

             {

                 rate = ;

             }

             else if (contrast < )

             {

                 rate = contrast / 50.0;//小于50的，对比度比率必须是纯小数,0-1 之间

             }

             else

             {

                 rate =  + Const_MiddleBrightness * ((contrast - 50.0) / 50.0);//大于50的,比率必须是1到128之间的值

             }

             try

             {

                 BitmapData data = bitmap.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* curpix = (byte*)data.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             for (int i = ; i < ; i++) //R,G,B 3个通道

                             {

                                 //对于 刚好亮度等于中间值的点,需要把亮度调高或调低1

                                 //否则将无法实现对该点 提高对比度

                                 if (curpix[i] == Const_MiddleBrightness)

                                 {

                                     curpix[i] = (byte)(curpix[i] + );

                                 }

                                 //调整该像素对比度

                                 curcolor = (Int32)(Const_MiddleBrightness + (curpix[i] - Const_MiddleBrightness) * rate);

                                 CommonCompute.SetInt32Range(ref curcolor, Const_MinBrightness, Const_MaxBrightness);

                                 curpix[i] = (byte)curcolor;

                                 ++curpix;

                             }

                         }

                         curpix += data.Stride - width * ;

                     }

                 }

                 bitmap.UnlockBits(data);

             }

             catch

             {

                 bitmap = null;

             }

             return bitmap;

         }

         /// <summary>

         /// 任意角度旋转

         /// </summary>

         /// <param name="srcbitmap">原始图Bitmap</param>

         /// <param name="angle">旋转角度</param>

         /// <param name="bkColor">背景色</param>

         /// <returns>输出Bitmap</returns>

         public static Bitmap Rotate(Bitmap srcbitmap, float angle, Color bkColor)

         {

             int w = srcbitmap.Width + ;

             int h = srcbitmap.Height + ;

             PixelFormat pf;

             if (bkColor == Color.Transparent)

             {

                 pf = PixelFormat.Format32bppArgb;

             }

             else

             {

                 pf = srcbitmap.PixelFormat;

             }

             Bitmap tmp = new Bitmap(w, h, pf);

             Graphics g = Graphics.FromImage(tmp);

             g.Clear(bkColor);

             g.DrawImageUnscaled(srcbitmap, , );

             g.Dispose();

             GraphicsPath path = new GraphicsPath();

             path.AddRectangle(new RectangleF(0f, 0f, w, h));

             Matrix mtrx = new Matrix();

             mtrx.Rotate(angle);

             RectangleF rct = path.GetBounds(mtrx);

             Bitmap dst = new Bitmap((int)rct.Width, (int)rct.Height, pf);

             g = Graphics.FromImage(dst);

             g.Clear(bkColor);

             g.TranslateTransform(-rct.X, -rct.Y);

             g.RotateTransform(angle);

             g.InterpolationMode = InterpolationMode.HighQualityBilinear;

             g.DrawImageUnscaled(tmp, , );

             g.Dispose();

             tmp.Dispose();

             return dst;

         }

         /// <summary>

         /// Gamma校正

         /// </summary>

         /// <param name="srcbitmap">输入Bitmap</param>

         /// <param name="val">[0 <-明- 1 -暗-> 2]</param>

         /// <returns>输出Bitmap</returns>

         public static Bitmap SetGamma(Bitmap srcbitmap, float val)

         {

             if (srcbitmap == null)

             {

                 return null;

             }

             // 1表示无变化，就不做

             if (val == 1.0000f) return srcbitmap;

             try

             {

                 Bitmap b = new Bitmap(srcbitmap.Width, srcbitmap.Height);

                 Graphics g = Graphics.FromImage(b);

                 ImageAttributes attr = new ImageAttributes();

                 attr.SetGamma(val, ColorAdjustType.Bitmap);

                 g.DrawImage(srcbitmap, new Rectangle(, , srcbitmap.Width, srcbitmap.Height), , , srcbitmap.Width, srcbitmap.Height, GraphicsUnit.Pixel, attr);

                 g.Dispose();

                 return b;

             }

             catch

             {

                 return null;

             }

         }

         /// <summary>         

         /// 重新设置图片尺寸     

         /// </summary> 

         /// <param name="srcbitmap">original Bitmap</param>         

         /// <param name="newW">new width</param>         

         /// <param name="newH">new height</param>         

         /// <returns>worked bitmap</returns> 

         public static Boolean ResizeImage(Bitmap srcimg, int newW, int newH, ref Bitmap destimage)

         {

             if (srcimg == null)

             {

                 return false;

             }

             destimage = new Bitmap(newW, newH);

             Graphics graph = Graphics.FromImage(destimage);

             Boolean bl = true;

             try

             {

                 graph.InterpolationMode = InterpolationMode.HighQualityBicubic;

                 graph.DrawImage(srcimg, new Rectangle(, , newW, newH),

                     new Rectangle(, , srcimg.Width, srcimg.Height),

                     GraphicsUnit.Pixel);

                 graph.Dispose();

             }

             catch (Exception ex)

             {

                 Console.WriteLine("ResizeImage error" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 去除噪点

         /// </summary>

         /// <param name="noisypointsize">噪点的尺寸</param>

         /// <param name="bitmap">待处理的图片信息</param>

         /// <returns></returns>

         public static Boolean RemoveNoisypoint(Int32 noisypointsize, ref Bitmap bitmap)

         {

             if (bitmap == null || noisypointsize <  ||

                 noisypointsize *  >= bitmap.Width || noisypointsize *  >= bitmap.Height)

             {

                 return false;

             }

             // 创建过滤器

             BlobsFiltering blobfilter =

                 new BlobsFiltering();

             // 设置过滤条件(对象长、宽至少为70)

             blobfilter.CoupledSizeFiltering = true;

             blobfilter.MinWidth = noisypointsize;

             blobfilter.MinHeight = noisypointsize;

             blobfilter.ApplyInPlace(bitmap);

             return true;

         }

         /// <summary>

         /// 把图片里指定区域的内容复制到另一个图片里

         /// </summary>

         /// <param name="srcimg"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <param name="width"></param>

         /// <param name="height"></param>

         /// <param name="destimg"></param>

         /// <returns></returns>

         public static Boolean CutImage(Bitmap srcimg, Int32 x, Int32 y, Int32 width, Int32 height, ref Bitmap destimg)

         {

             if (srcimg == null || x <  || y <  || width <  || height <  ||

                 x + width > srcimg.Width || y + height > srcimg.Height)

             {

                 return false;

             }

             destimg = new Bitmap(width, height, PixelFormat.Format32bppArgb);

             Graphics graph = Graphics.FromImage(destimg);

             graph.InterpolationMode = InterpolationMode.HighQualityBicubic;

             graph.DrawImage(srcimg, new Rectangle(, , width, height),

                     new Rectangle(x, y, width, height), GraphicsUnit.Pixel);

             graph.Dispose();

             return true;

         }

         #endregion

         #region 亮度处理

         /// <summary>

         /// 获取指定坐标处的亮度值

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetPixBrightness(Bitmap bitmap, Int32 x, Int32 y, eGrayMode mode, ref Byte brightness)

         {

             if (bitmap == null)

             {

                 return false;

             }

             if (x <  || x >= bitmap.Width ||

                 y <  || y >= bitmap.Height)

             {

                 return false;

             }

             Color curColor = bitmap.GetPixel(x, y);

             //利用公式计算灰度值（加权平均法）

             if (mode == eGrayMode.ArithmeticAverage)

             {

                 brightness = (Byte)(curColor.R * 0.299f + curColor.G * 0.587f + curColor.B * 0.114f);

             }

             else

             {

                 brightness = (Byte)((curColor.R + curColor.G + curColor.B) / 3.0f);

             }

             return true;

         }

         /// <summary>

         /// 获取指定坐标处的亮度值

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetPixBrightness(Byte[] bribytes, Int32 width,Int32 height,

             Int32 x, Int32 y, ref Byte brightness)

         {

             if (bribytes == null || width <  || height <  ||

                 x <  || x >= width ||

                 y <  || y >= height ||

                 bribytes.Length != width * height)

             {

                 return false;

             }

             brightness = bribytes[y * width + x];

             return true;

         }

         /// <summary>

         /// 获取指定坐标处的亮度值

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetPixBrightnessByRate(Byte[] bribytes, Int32 width, Int32 height,

             double  xRate, double yRate, ref Byte brightness)

         {

             int x = (int)(width * xRate);

             int y =  (int)(height * yRate);

             if (bribytes == null || width <  || height <  ||

                 x <  || x >= width ||

                 y <  || y >= height ||

                 bribytes.Length != width * height)

             {

                 return false;

             }

             brightness = bribytes[y * width + x];

             return true;

         }

         /// <summary>

         /// 获取指定坐标处的颜色

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetPixColor(Bitmap bitmap, Int32 x, Int32 y, ref Color curColor)

         {

             if (bitmap == null)

             {

                 return false;

             }

             if (x <  || x >= bitmap.Width ||

                 y <  || y >= bitmap.Height)

             {

                 return false;

             }

             curColor = bitmap.GetPixel(x, y);

             return true;

         }

         /// <summary>

         /// 获取指定坐标处的颜色

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetPixColorByRate(Bitmap bitmap, double xRate, double yRate, ref Color curColor)

         {

             if (bitmap == null)

             {

                 return false;

             }

             int width = bitmap.Width;

             int height = bitmap.Height;

             int X = (int)(width * xRate);

             int Y = (int)(height * yRate);

             Boolean bl = GetPixColor(bitmap, X, Y, ref curColor);

             return bl;

         }

         /// <summary>

         /// 把颜色转换为亮度值

         /// </summary>

         /// <param name="bitmap"></param>

         /// <param name="x"></param>

         /// <param name="y"></param>

         /// <returns></returns>

         public static Boolean GetBrightnessByColor(Color curColor, eGrayMode mode, ref Byte brightness)

         {

             if (curColor == null)

             {

                 return false;

             }

             //利用公式计算灰度值（加权平均法）

             if (mode == eGrayMode.ArithmeticAverage)

             {

                 brightness = (Byte)(curColor.R * 0.299f + curColor.G * 0.587f + curColor.B * 0.114f);

             }

             else

             {

                 brightness = (Byte)((curColor.R + curColor.G + curColor.B) / 3.0f);

             }

             return true;

         }

         #endregion

         #region 图片比较

         /// <summary>

         /// 根据2个图片的亮度值,比较图片的差异部分

         /// </summary>

         /// <param name="brightnessDiff"></param>

         /// <param name="compareret"></param>

         /// <returns></returns>

         public static Boolean CompareImageBrightness(Byte brightnessDiff,

             Byte[] brightness1, Byte[] brightness2,

             ref Boolean[] diffPixArray)

         {

             if (brightness1 == null || brightness2 == null ||

                 brightness1.Length <  || brightness2.Length <  ||

                 brightness1.Length != brightness2.Length)

             {

                 return false;

             }

             Int32 arylen = brightness1.Length;

             diffPixArray = new Boolean[brightness1.Length];

             Byte bri1 = ;

             Byte bri2 = ;

             for (Int32 byteidx = ; byteidx < arylen; ++byteidx)

             {

                 bri1 = brightness1[byteidx];

                 bri2 = brightness2[byteidx];

                 //亮度差超过指定范围

                 if (bri1 >= bri2 + brightnessDiff ||

                      bri2 >= bri1 + brightnessDiff)

                 {

                     diffPixArray[byteidx] = true;

                 }

             }

             return true;

         }

         /// <summary>

         /// 把2个图片的尺寸设置为一样大

         /// </summary>

         /// <param name="image1"></param>

         /// <param name="image2"></param>

         /// <returns></returns>

         public static Boolean ResizeImageToSame(ref Bitmap image1, ref Bitmap image2)

         {

             if (image1 == null || image2 == null ||

                 image1.Width ==  || image1.Height ==  ||

                 image2.Width ==  || image2.Height == )

             {

                 return false;

             }

             //如果2个图片尺寸不一样,把大的尺寸压缩小了再比较

             Boolean bl = false;

             Bitmap tmpimg = null;

             if (image1.Width > image2.Width && image1.Height < image2.Height)

             {

                 return false;

             }

             if (image1.Width < image2.Width && image1.Height > image2.Height)

             {

                 return false;

             }

             //image1 比较大,把image2放大到 与1一样大

             if (image1.Width > image2.Width && image1.Height > image2.Height)

             {

                 bl = ResizeImage(image2, image1.Width, image1.Height, ref tmpimg);

                 image2 = tmpimg;

             }

             //image 2比较大,把image1放大到 与2一样大

             if (image1.Width < image2.Width && image1.Height < image2.Height)

             {

                 bl = ResizeImage(image1, image2.Width, image2.Height, ref tmpimg);

                 image1 = tmpimg;

             }

             return true;

         }

         /// <summary>

         /// 根据2个图片的像素颜色值,比较图片的差异部分

         /// </summary>

         /// <param name="compareparam"></param>

         /// <param name="compareret"></param>

         /// <returns></returns>

         public static Boolean CompareImage(ImageCompareParameter compareparam,

             ref ImageCompareResult compareret)

         {

             Bitmap image1 = compareparam.Image1;

             Bitmap image2 = compareparam.Image2;

             Int32 briDiff = compareparam.BrightnessDiff;

             Color diffColor = compareparam.DifferentAreaFillColor;

             Color samecolor = compareparam.SameAreaFillColor;

             //是否需要填充相同或不同部分的像素的颜色

             Boolean filldiffcolor = (diffColor != Color.Transparent);

             Boolean fillsamecolor = (samecolor != Color.Transparent);

             //如果图片尺寸不一样,修改为一样大

             Boolean bl = ResizeImageToSame(ref image1, ref image2);

             if (!bl)

             {

                 return false;

             }

             Bitmap imagediff = (Bitmap)image1.Clone();

             //不同区域的左上下右位置

             Int32 areaLeft = imagediff.Width;

             Int32 areaTop = imagediff.Height;

             Int32 areaRight = -;

             Int32 areaBottom = -;

             int width = image1.Width;

             int height = image1.Height;

             long allpixcnt = height * width;//所有像素点数量

             long diffpixcnt = ;//不同像素点数量

             long samepixcnt = ;//相同像素点数量

             //3张图片的各像素亮度数组

             Int32 briaryidx = ;

             Byte[] briary1 = new Byte[allpixcnt];

             Byte[] briary2 = new Byte[allpixcnt];

             Byte[] briaryret = new Byte[allpixcnt];

             Byte diffB = diffColor.B;

             Byte diffG = diffColor.G;

             Byte diffR = diffColor.R;

             Byte sameB = samecolor.B;

             Byte sameG = samecolor.G;

             Byte sameR = samecolor.R;

             Byte samebri = ;

             Byte diffbri = ;

             GetBrightnessByColor(diffColor, eGrayMode.WeightedAverage, ref samebri);

             GetBrightnessByColor(diffColor, eGrayMode.WeightedAverage, ref diffbri);

             try

             {

                 BitmapData data1 = image1.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 BitmapData data2 = image2.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 BitmapData datadiff = imagediff.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 byte bri1 = ;

                 byte bri2 = ;

                 //每个像素是否相同.1相同,0不同

                 compareret.PixIsDifferent = new Boolean[width * height];

                 //当前像素是否不同

                 Boolean curpixIsdiff = false;

                 unsafe

                 {

                     byte* curpix1 = (byte*)data1.Scan0.ToPointer();

                     byte* curpix2 = (byte*)data2.Scan0.ToPointer();

                     byte* curpixdiff = (byte*)datadiff.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             //利用公式计算灰度值（加权平均法）

                             //按BGR的顺序存储

                             bri1 = (Byte)(curpix1[] * 0.114f + curpix1[] * 0.587f + curpix1[] * 0.299f);

                             bri2 = (Byte)(curpix2[] * 0.114f + curpix2[] * 0.587f + curpix2[] * 0.299f);

                             //以1作为基准,比较1和2之间的差距,如果超过阀值,认为当前像素有差异

                             //否则认为当前像素没有差异

                             curpixIsdiff = false;

                             if (bri1 >= bri2 + briDiff ||

                                 bri2 >= bri1 + briDiff)

                             {

                                 curpixIsdiff = true;

                             }

                             briary1[briaryidx] = bri1;

                             briary2[briaryidx] = bri2;

                             if (curpixIsdiff) //如果有差异,设置图像1里的当前像素为 不同颜色

                             {

                                 if (filldiffcolor)

                                 {

                                     curpixdiff[] = diffB;

                                     curpixdiff[] = diffG;

                                     curpixdiff[] = diffR;

                                 }

                                 ++diffpixcnt;

                                 if (x < areaLeft) //记忆最左边的像素位置

                                 {

                                     areaLeft = x;

                                 }

                                 if (x > areaRight) //记忆最右边的像素位置

                                 {

                                     areaRight = x;

                                 }

                                 if (y < areaTop) //记忆最上边的像素位置

                                 {

                                     areaTop = y;

                                 }

                                 if (y > areaBottom) //记忆最下边的像素位置

                                 {

                                     areaBottom = y;

                                 }

                                 //记忆当前像素的比较结果的亮度

                                 briaryret[briaryidx] = diffbri;

                             }

                             else //没有差异,设置结果里的当前像素为 相同颜色

                             {

                                 if (fillsamecolor)

                                 {

                                     curpixdiff[] = sameB;

                                     curpixdiff[] = sameG;

                                     curpixdiff[] = sameR;

                                 }

                                 ++samepixcnt;

                                 //记忆当前像素的比较结果的亮度

                                 briaryret[briaryidx] = samebri;

                             }

                             // 比较结果的亮度数组下标

                             ++briaryidx;

                             //像素是否不同的标志

                             compareret.PixIsDifferent[y * width + x] = curpixIsdiff;

                             curpix1 += ;

                             curpix2 += ;

                             curpixdiff += ;

                         }

                         curpix1 += data1.Stride - width * ;

                         curpix2 += data1.Stride - width * ;

                         curpixdiff += datadiff.Stride - width * ;

                     }

                 }

                 image1.UnlockBits(data1);

                 image2.UnlockBits(data2);

                 imagediff.UnlockBits(datadiff);

                 compareret.RateDifferent = diffpixcnt / (double)allpixcnt;

                 compareret.RateSame = samepixcnt / (double)allpixcnt;

                 compareret.CompareResultImage = imagediff;

                 compareret.BrightnessDiff = briDiff;

                 compareret.BrightnessBytesImage1 = briary1;

                 compareret.BrightnessBytesImage2 = briary2;

                 compareret.BrightnessBytesResult = briaryret;

                 //保存区域范围

                 //compareret.DiffAreaTop = areaTop;

                 //compareret.DiffAreaLeft = areaLeft;

                 //compareret.DiffAreaRight = areaRight;

                 //compareret.DiffAreaBottom = areaBottom;

                 //compareret.CalculateAreaRate();

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("CompareImage error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 2张图片亮度值相减,得到新图片以及亮度值

         /// </summary>

         /// <param name="image1"></param>

         /// <param name="image2"></param>

         /// <param name="retimage"></param>

         /// <param name="brightnessary"></param>

         /// <returns></returns>

         public static Boolean SubtractImageBrightness(Bitmap image1, Bitmap image2,

             ref Bitmap imagediff, ref Byte[] brightnessary)

         {

             if (image1 == null || image2 == null)

             {

                 return false;

             }

             Boolean bl = ResizeImageToSame(ref image1, ref image2);

             if (!bl)

             {

                 return false;

             }

             int width = image1.Width;

             int height = image1.Height;

             long allpixcnt = height * width;//所有像素点数量             

             brightnessary = new Byte[allpixcnt];

             imagediff = new Bitmap(image1);

             Int32 pixidx = ;//当前像素下标

             byte bri1 = ;

             byte bri2 = ;

             BitmapData data1 = null;

             BitmapData data2 = null;

             BitmapData datadiff = null;

             //每行末尾还有这么多的冗余字节

             Int32 rowredundancy = ;

             try

             {

                 data1 = image1.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 data2 = image2.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 datadiff = imagediff.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 rowredundancy = datadiff.Stride - width * ;//每行末尾还有这么多的冗余字节

                 Byte bridiff = ;

                 unsafe

                 {

                     byte* curpix1 = (byte*)data1.Scan0.ToPointer();

                     byte* curpix2 = (byte*)data2.Scan0.ToPointer();

                     byte* cmpretpix = (byte*)datadiff.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             bri1 = (byte)((float)(curpix1[] + curpix1[] + curpix1[]) / 3.0f);

                             bri2 = (byte)((float)(curpix2[] + curpix2[] + curpix2[]) / 3.0f);

                             bridiff = (bri1 > bri2) ? (Byte)(bri1 - bri2) : (Byte)(bri2 - bri1); //计算当前像素点的亮度值

                             brightnessary[pixidx] = bridiff;//保存亮度值

                             ++pixidx;

                             cmpretpix[] = bridiff;//把亮度值设置到结果图像里

                             cmpretpix[] = bridiff;

                             cmpretpix[] = bridiff;

                             curpix1 += ;

                             curpix2 += ;

                             cmpretpix += ;

                         }

                         curpix1 += rowredundancy;

                         curpix2 += rowredundancy;

                         cmpretpix += rowredundancy;

                     }

                 }

                 image1.UnlockBits(data1);

                 image2.UnlockBits(data2);

                 imagediff.UnlockBits(datadiff);

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("CompareImage error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 根据2个图片的亮度值,比较图片的差异部分,并对比较结果的图片执行去噪点处理

         /// </summary>

         /// <param name="image1"></param>

         /// <param name="image2"></param>

         /// <param name="bridiff">亮度容差</param>

         /// <param name="noisypointsize">噪点边长</param>

         /// <param name="imagediff">比较结果的图片</param>

         /// <param name="diffary">每个像素是否相同</param>

         /// <returns></returns>

         public static Boolean CompareImageByBrightness(Bitmap image1, Bitmap image2,

             Int32 briDiff, Int32 noisypointsize,

             ref Bitmap imagediff, ref Boolean[] diffary)

         {

             if (image1 == null || image2 == null)

             {

                 return false;

             }

             Boolean bl = ResizeImageToSame(ref image1, ref image2);

             if (!bl)

             {

                 return false;

             }

             if (briDiff <  || briDiff > )

             {

                 return false;

             }

             if (noisypointsize <  || noisypointsize *  > image1.Height)

             {

                 return false;

             }

             int width = image1.Width;

             int height = image1.Height;

             long allpixcnt = height * width;//所有像素点数量

             imagediff = new Bitmap(image1);

             //每个像素是否相同.1相同,0不同

             diffary = new Boolean[width * height];

             Int32 pixidx = ;//当前像素下标

             byte bri1 = ;

             byte bri2 = ;

             BitmapData data1 = null;

             BitmapData data2 = null;

             BitmapData datadiff = null;

             //每行末尾还有这么多的冗余字节

             Int32 rowredundancy = ;

             try

             {

                 data1 = image1.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 data2 = image2.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 datadiff = imagediff.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 rowredundancy = datadiff.Stride - width * ;//每行末尾还有这么多的冗余字节

                 unsafe

                 {

                     byte* curpix1 = (byte*)data1.Scan0.ToPointer();

                     byte* curpix2 = (byte*)data2.Scan0.ToPointer();

                     byte* cmpretpix = (byte*)datadiff.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             bri1 = (byte)((float)(curpix1[] + curpix1[] + curpix1[]) / 3.0f);

                             bri2 = (byte)((float)(curpix2[] + curpix2[] + curpix2[]) / 3.0f);

                             //比较2个像素亮度值之差,如果有差异,设置图像1里的当前像素为 不同颜色

                             if (bri1 >= bri2 + briDiff ||

                               bri2 >= bri1 + briDiff)

                             {

                                 diffary[pixidx] = true;

                                 cmpretpix[] = Const_WhiteBrightness;

                                 cmpretpix[] = Const_WhiteBrightness;

                                 cmpretpix[] = Const_WhiteBrightness;

                             }

                             else

                             {

                                 diffary[pixidx] = false;

                                 cmpretpix[] = Const_BlackBrightness;

                                 cmpretpix[] = Const_BlackBrightness;

                                 cmpretpix[] = Const_BlackBrightness;

                             }

                             ++pixidx;

                             curpix1 += ;

                             curpix2 += ;

                             cmpretpix += ;

                         }

                         curpix1 += rowredundancy;

                         curpix2 += rowredundancy;

                         cmpretpix += rowredundancy;

                     }

                 }

                 image1.UnlockBits(data1);

                 image2.UnlockBits(data2);

                 imagediff.UnlockBits(datadiff);

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("CompareImage error:" + ex.Message);

                 bl = false;

             }

             //现在对图像执行去噪点处理

             RemoveNoisypoint(noisypointsize, ref imagediff);

             //获取去除噪点后各像素亮度

             Byte pixbri = ;//当前像素亮度

             pixidx = ;

             try

             {

                 datadiff = imagediff.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 unsafe

                 {

                     byte* cmpretpix = (byte*)datadiff.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             pixbri = (byte)((float)(cmpretpix[] + cmpretpix[] + cmpretpix[]) / 3.0f);

                             //去除噪点后,已经变得非黑即白.如果是黑色,表示相同,白色,表示不同

                             diffary[pixidx] = (pixbri > briDiff);

                             ++pixidx;

                             cmpretpix += ;

                         }

                         cmpretpix += rowredundancy;

                     }

                 }

                 imagediff.UnlockBits(datadiff);

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("CompareImage error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// 根据2个图片的亮度值,比较图片的差异部分

         /// </summary>

         /// <param name="compareparam"></param>

         /// <param name="compareret"></param>

         /// <returns></returns>

         public static Boolean CompareImageByBrightness(ImageCompareParameter compareparam,

             ref ImageCompareResult compareret)

         {

             Bitmap image1 = compareparam.Image1;

             Bitmap image2 = compareparam.Image2;

             Byte[] imagebri1 = compareparam.BrightnessBytesImage1;

             Byte[] imagebri2 = compareparam.BrightnessBytesImage2;

             Int32 briDiff = compareparam.BrightnessDiff;

             Color diffColor = compareparam.DifferentAreaFillColor;

             Color samecolor = compareparam.SameAreaFillColor;

             //是否需要填充相同或不同部分的像素的颜色

             Boolean filldiffcolor = (diffColor != Color.Transparent);

             Boolean fillsamecolor = (samecolor != Color.Transparent);

             Boolean bl = false;

             Bitmap imagediff = new Bitmap(image1);

             //不同区域的左上下右位置

             Int32 areaLeft = imagediff.Width;

             Int32 areaTop = imagediff.Height;

             Int32 areaRight = -;

             Int32 areaBottom = -;

             int width = image1.Width;

             int height = image1.Height;

             long allpixcnt = height * width;//所有像素点数量

             long diffpixcnt = ;//不同像素点数量

             long samepixcnt = ;//相同像素点数量

             if (imagebri1 == null || imagebri2 == null ||

                 imagebri2.Length != imagebri2.Length ||

                 imagebri2.Length != allpixcnt)

             {

                 return false;

             }

             //3张图片的各像素亮度数组

             Int32 briaryidx = ;

             Byte[] briaryret = new Byte[allpixcnt];

             Byte diffB = diffColor.B;

             Byte diffG = diffColor.G;

             Byte diffR = diffColor.R;

             Byte sameB = samecolor.B;

             Byte sameG = samecolor.G;

             Byte sameR = samecolor.R;

             Byte samebri = ;

             Byte diffbri = ;

             GetBrightnessByColor(diffColor, eGrayMode.WeightedAverage, ref samebri);

             GetBrightnessByColor(diffColor, eGrayMode.WeightedAverage, ref diffbri);

             Int32 currowfirstx = ;//当前行的首个像素的下标

             try

             {

                 BitmapData data1 = image1.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 BitmapData data2 = image2.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 BitmapData datadiff = imagediff.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 byte bri1 = ;

                 byte bri2 = ;

                 //每个像素是否相同.1相同,0不同

                 compareret.PixIsDifferent = new Boolean[width * height];

                 //当前像素是否不同

                 Boolean curpixIsdiff = false;

                 unsafe

                 {

                     byte* curpix1 = (byte*)data1.Scan0.ToPointer();

                     byte* curpix2 = (byte*)data2.Scan0.ToPointer();

                     byte* cmpretpix = (byte*)datadiff.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         currowfirstx = y * width;

                         for (int x = ; x < width; x++)

                         {

                             bri1 = imagebri1[currowfirstx + x];

                             bri2 = imagebri2[currowfirstx + x];

                             //以1作为基准,比较1和2之间的差距,如果超过阀值,认为当前像素有差异

                             //否则认为当前像素没有差异

                             curpixIsdiff = false;

                             if (bri1 >= bri2 + briDiff ||

                                 bri2 >= bri1 + briDiff)

                             {

                                 curpixIsdiff = true;

                             }

                             if (curpixIsdiff) //如果有差异,设置图像1里的当前像素为 不同颜色

                             {

                                 if (filldiffcolor)

                                 {

                                     cmpretpix[] = diffB;

                                     cmpretpix[] = diffG;

                                     cmpretpix[] = diffR;

                                 }

                                 ++diffpixcnt;

                                 if (x < areaLeft) //记忆最左边的像素位置

                                 {

                                     areaLeft = x;

                                 }

                                 if (x > areaRight) //记忆最右边的像素位置

                                 {

                                     areaRight = x;

                                 }

                                 if (y < areaTop) //记忆最上边的像素位置

                                 {

                                     areaTop = y;

                                 }

                                 if (y > areaBottom) //记忆最下边的像素位置

                                 {

                                     areaBottom = y;

                                 }

                                 //记忆当前像素的比较结果的亮度

                                 briaryret[briaryidx] = diffbri;

                             }

                             else //没有差异,设置结果里的当前像素为 相同颜色

                             {

                                 if (fillsamecolor)

                                 {

                                     cmpretpix[] = sameB;

                                     cmpretpix[] = sameG;

                                     cmpretpix[] = sameR;

                                 }

                                 ++samepixcnt;

                                 //记忆当前像素的比较结果的亮度

                                 briaryret[briaryidx] = samebri;

                             }

                             // 比较结果的亮度数组下标

                             ++briaryidx;

                             //像素是否不同的标志

                             compareret.PixIsDifferent[currowfirstx + x] = curpixIsdiff;

                             curpix1 += ;

                             curpix2 += ;

                             cmpretpix += ;

                         }

                         curpix1 += data1.Stride - width * ;

                         curpix2 += data1.Stride - width * ;

                         cmpretpix += datadiff.Stride - width * ;

                     }

                 }

                 image1.UnlockBits(data1);

                 image2.UnlockBits(data2);

                 imagediff.UnlockBits(datadiff);

                 compareret.RateDifferent = diffpixcnt / (double)allpixcnt;

                 compareret.RateSame = samepixcnt / (double)allpixcnt;

                 compareret.CompareResultImage = imagediff;

                 compareret.BrightnessDiff = briDiff;

                 compareret.BrightnessBytesResult = briaryret;

                 bl = true;

             }

             catch (Exception ex)

             {

                 Console.WriteLine("CompareImage error:" + ex.Message);

                 bl = false;

             }

             return bl;

         }

         /// <summary>

         /// 获取一个区域的实际坐标

         /// </summary>

         /// <param name="area"></param>

         /// <param name="width"></param>

         /// <param name="height"></param>

         /// <param name="x1"></param>

         /// <param name="y1"></param>

         /// <param name="x2"></param>

         /// <param name="y2"></param>

         public static void GetAreaPositionInImage(ImageAreaInfo area,

             Int32 width, Int32 height,

             ref Int32 x1, ref Int32 y1, ref Int32 x2, ref Int32 y2)

         {

             if (area.PositionType == ePositionType.ByPix)

             {

                 x1 = (Int32)area.X1;

                 y1 = (Int32)area.Y1;

                 x2 = (Int32)area.X2;

                 y2 = (Int32)area.Y2;

             }

             else

             {

                 x1 = (Int32)(area.X1 * (double)width);

                 y1 = (Int32)(area.Y1 * (double)height);

                 x2 = (Int32)(area.X2 * (double)width);

                 y2 = (Int32)(area.Y2 * (double)height);

             }

         }

         /// <summary>

         /// 检查指定区域的图像是否与方案里的指定值一样(都是相同或者不同)

         /// </summary>

         /// <param name="briDiffary">每个元素对应2张图片的每个像素亮度相同还是不同.true不同,false相同</param>

         /// <param name="area"></param>

         /// <returns></returns>

         public static Boolean ValidateImageArea(Boolean[] briDiffary, ImageAreaInfo area, Int32 width, Int32 height)

         {

             if (briDiffary == null || briDiffary.Length <  || area == null ||

                 width <  || height <  || width * height != briDiffary.Length)

             {

                 return false;

             }

             Int32 x1 = ;

             Int32 x2 = ;

             Int32 y1 = ;

             Int32 y2 = ;

             //获取该区域在图像里的实际坐标范围

             GetAreaPositionInImage(area, width, height,

                 ref x1, ref y1, ref x2, ref y2);

             //获取该区域里的像素匹配类型

             eAreaDifferentType difftype = eAreaDifferentType.Partial;

             Boolean bl = GetImageAreaDifferentType(briDiffary, width, height,

                 x1, y1, x2, y2, ref difftype);

             if (!bl)

             {

                 return false;

             }

             //如果是期待所有像素都是相同,要求必须每个像素都相同.任何一个不同,就认为失败

             if (area.ExpectDispMode == eDrawType.ExpectHide &&

                 difftype != eAreaDifferentType.AllSame)

             {

                 return false;

             }

             //如果是期待像素不同,只要有1个像素不同就可以.所有像素都相同,认为失败

             if (area.ExpectDispMode == eDrawType.ExpectShow &&

                 difftype == eAreaDifferentType.AllSame)

             {

                 return false;

             }

             return true;

         }

         /// <summary>

         /// 检查指定区域的图像是否与方案里的指定值一样(都是相同或者不同)

         /// </summary>

         /// <param name="pixDiffary"></param>

         /// <param name="area"></param>

         /// <returns></returns>

         public static Boolean ValidateImageArea(Byte[] briDiffary, ImageAreaInfo area, Int32 width, Int32 height)

         {

             Boolean[] blary = new Boolean[briDiffary.Length];

             for (Int32 idx = ; idx < briDiffary.Length; ++idx)

             {

                 blary[idx] = (briDiffary[idx] > );

             }

             Boolean bl = ValidateImageArea(blary, area, width, height);

             return bl;

         }

         /// <summary>

         /// 检查图片的比较结果里，某个区域是否与期待的一致

         /// </summary>

         /// <param name="compareret"></param>

         /// <param name="area"></param>

         /// <returns>true-与期待一致;false-不一致</returns>

         public static Boolean ValidateImageArea(ImageCompareResult compareret, ImageAreaInfo area)

         {

             Boolean[] pixDiffary = compareret.PixIsDifferent;

             Bitmap tmp = new Bitmap(compareret.CompareResultImage);

             Int32 width = tmp.Width;

             Int32 height = tmp.Height;

             Boolean bl = ValidateImageArea(compareret.PixIsDifferent, area, width, height);

             return bl;

         }

         /// <summary>

         /// 获取1个 比较结果里,指定的区域范围,是全都相同,还是不同

         /// 只有所有像素都是相同,才认为是整个区域相同

         /// 如果有1个像素不同,则认为整个区域不同

         /// </summary>

         /// <param name="pixDiffary"></param>

         /// <param name="width"></param>

         /// <param name="height"></param>

         /// <param name="startX"></param>

         /// <param name="startY"></param>

         /// <param name="endX"></param>

         /// <param name="endY"></param>

         /// <returns> </returns>

         public static Boolean GetImageAreaDifferentType(Boolean[] pixDiffary, Int32 width, Int32 height,

             Int32 x1, Int32 y1, Int32 x2, Int32 y2, ref eAreaDifferentType difftype)

         {

             Int32 areawidth = x2 - x1;

             Int32 areaheight = y2 - y1;

             if (pixDiffary == null || width <  || height <  ||

                 areawidth <  || areaheight <  ||

                 width < areawidth || height < areaheight ||

                 pixDiffary.Length < width * height)

             {

                 return false;

             }

             Boolean allissame = false; //假设所有像素相同

             Boolean allisdiff = false; //假设所有像素不同

             Int32 currowFirstPix = ;

             for (Int32 y = y1; y <= y2; ++y)

             {

                 currowFirstPix = y * width;

                 for (Int32 x = x1; x <= x2; ++x)

                 {

                     if (pixDiffary[currowFirstPix + x]) //当前像素点不同

                     {

                         allisdiff = true;

                     }

                     else//当前像素相同

                     {

                         allissame = true;

                     }

                     //如果已经有部分相同部分不同,退出

                     if (allisdiff && allissame)

                     {

                         difftype = eAreaDifferentType.Partial;

                         return true;

                     }

                 }

             }

             //现在，所有像素都相同，或都不同

             if (allisdiff)

             {

                 difftype = eAreaDifferentType.AllDifferent;

             }

             else

             {

                 difftype = eAreaDifferentType.AllSame;

             }

             return true;

         }

         /// <summary>

         /// 根据亮度容差,把图片转换为非黑即白的图片

         /// </summary>

         /// <param name="briimg"></param>

         /// <param name="brigate"></param>

         /// <returns></returns>

         public static Boolean GetBlackWhiteImage(Bitmap briimg, Byte[] briDiffary, Int32 brigate, ref Bitmap blackwhiteimage)

         {

             if (briimg == null)

             {

                 return false;

             }

             int width = briimg.Width;

             int height = briimg.Height;

             long allpixcnt = height * width;//所有像素点数量            

             if (briDiffary == null || briDiffary.Length != allpixcnt)

             {

                 return false;

             }

             blackwhiteimage = new Bitmap(briimg);

             Int32 pixidx = ;//当前像素下标

             BitmapData datasrc = null;

             BitmapData dataret = null;

             //每行末尾还有这么多的冗余字节

             Int32 rowredundancy = ;

             Byte curpixBri = ;//当前的亮度

             try

             {

                 datasrc = briimg.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 dataret = blackwhiteimage.LockBits(new Rectangle(, , width, height),

                     ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

                 rowredundancy = datasrc.Stride - width * ;//每行末尾还有这么多的冗余字节

                 unsafe

                 {

                     byte* pixret = (byte*)dataret.Scan0.ToPointer();

                     for (int y = ; y < height; y++)

                     {

                         for (int x = ; x < width; x++)

                         {

                             //亮度差值大于门限的,认为是不同部分,用白色填充

                             curpixBri = (briDiffary[pixidx] > brigate) ? Const_BrightnessWhite : Const_BrightnessBlack;

                             pixret[] = curpixBri;//把亮度值设置到结果图像里

                             pixret[] = curpixBri;

                             pixret[] = curpixBri;

                             ++pixidx;

                             pixret += ;

                         }

                         pixret += rowredundancy;

                     }

                 }

                 briimg.UnlockBits(datasrc);

                 blackwhiteimage.UnlockBits(dataret);

             }

             catch (Exception ex)

             {

                 Console.WriteLine("GetBlackWhiteImage error:" + ex.Message);

                 return false;

             }

             return true;

         }

         #endregion

         #region 内部实现

         /// <summary>

         /// 比较2个数值之间的差是否大于指定值

         /// </summary>

         /// <param name="val1"></param>

         /// <param name="val2"></param>

         /// <param name="diff"></param>

         /// <returns>超过指定值返回true;否则返回false</returns>

         private static Boolean CheckDiffOver(Int32 val1, Int32 val2, Int32 diff)

         {

             if (diff < )

             {

                 return false;

             }

             if (val1 > val2 && val1 > val2 + diff)

             {

                 return true;

             }

             if (val2 > val1 && val2 > val1 + diff)

             {

                 return true;

             }

             return false;

         }

         #endregion

     }

 }