Java - 处理某些图片泛红

参考博文：

http://blog.****.net/kobejayandy/article/details/44346809

http://blog.****.net/shixing_11/article/details/6897871

http://blog.****.net/cuihailiang/article/details/52037389

问题现象：

Java上传图片时，对某些图片进行缩放、裁剪或者生成缩略图时会蒙上一层红色，经过检查只要经过ImageIO.read()方法读取后再保存，该图片便已经变成红图。因此，可以推测直接原因在于ImageIO.read()方法加载图片的过程存在问题。

 public static BufferedImage getImages(byte[] data) throws IOException {
         ByteArrayInputStream input = new ByteArrayInputStream(data);
         return ImageIO.read(input);
 }

经过查阅得知ImageIO.read()方法读取图片时可能存在不正确处理图片ICC信息的问题，ICC为JPEG图片格式中的一种头部信息，导致渲染图片前景色时蒙上一层红色。

解决方案：

1、使用awt Toolkit

不再使用ImageIO.read()方法加载图片，而使用JDK中提供的Image src=Toolkit.getDefaultToolkit().getImage

Image src = Toolkit.getDefaultToolkit().getImage(file.getPath());
BufferedImage image = BufferedImageBuilder.toBufferedImage(src);//Image to BufferedImage

或者Toolkit.getDefaultToolkit().createImage

 Image imageTookit = Toolkit.getDefaultToolkit().createImage(bytes);
 BufferedImage cutImage = BufferedImageBuilder.toBufferedImage(imageTookit);  

BufferedImageBuilder源码：

public static BufferedImage toBufferedImage(Image image) {
        if (image instanceof BufferedImage) {
            return (BufferedImage) image;
        }
        // This code ensures that all the pixels in the image are loaded
        image = new ImageIcon(image).getImage();
        BufferedImage bimage = null;
        GraphicsEnvironment ge = GraphicsEnvironment
                .getLocalGraphicsEnvironment();
        try {
            int transparency = Transparency.OPAQUE;
            GraphicsDevice gs = ge.getDefaultScreenDevice();
            GraphicsConfiguration gc = gs.getDefaultConfiguration();
            bimage = gc.createCompatibleImage(image.getWidth(null),
                    image.getHeight(null), transparency);
        } catch (HeadlessException e) {
            // The system does not have a screen
        }
        if (bimage == null) {
            // Create a buffered image using the default color model
            int type = BufferedImage.TYPE_INT_RGB;
            bimage = new BufferedImage(image.getWidth(null),
                    image.getHeight(null), type);
        }
        // Copy image to buffered image
        Graphics g = bimage.createGraphics();
        // Paint the image onto the buffered image
        g.drawImage(image, 0, 0, null);
        g.dispose();
        return bimage;
    }

如果该方法在Windows平台下使用正常，而在Linux平台上总是报异常，这种解决方式可以参考：http://blog.****.net/shixing_11/article/details/6897871/

2、使用阿里巴巴的SImpleImage

主要依赖以下jar包：commons-io-2.4.jar、commons-lang.jar、commons-logging-1.1.1.jar、jai_codec-1.1.3.jar、jai_core-1.1.3.jar
SimpleImage github地址：https://github.com/alibaba/simpleimage
相关jar包下载：http://download.****.net/detail/asd1231510/8911263

测试代码：

 package com.sup.test;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;

 import org.apache.commons.io.IOUtils;

 import com.alibaba.simpleimage.ImageRender;
 import com.alibaba.simpleimage.SimpleImageException;
 import com.alibaba.simpleimage.render.ReadRender;
 import com.alibaba.simpleimage.render.ScaleParameter;
 import com.alibaba.simpleimage.render.ScaleRender;
 import com.alibaba.simpleimage.render.WriteRender;

 public class Example {

     public static void compressPicAlibaba (String srcFilePath, String descFilePath) {
         File in = new File(srcFilePath);      //原图片
         File out = new File(descFilePath);       //目的图片
         ScaleParameter scaleParam = new ScaleParameter();

         FileInputStream inStream = null;
         FileOutputStream outStream = null;
         WriteRender wr = null;
         try {
             inStream = new FileInputStream(in);
             outStream = new FileOutputStream(out);
             ImageRender rr = new ReadRender(inStream);
             ImageRender sr = new ScaleRender(rr, scaleParam);
             wr = new WriteRender(sr, outStream);  

             wr.render();                            //触发图像处理
         } catch(Exception e) {
             e.printStackTrace();
         } finally {
             IOUtils.closeQuietly(inStream);         //图片文件输入输出流必须记得关闭
             IOUtils.closeQuietly(outStream);
             if (wr != null) {
                 try {
                     wr.dispose();                   //释放simpleImage的内部资源
                 } catch (SimpleImageException ignore) {
                     // skip ...
                 }
             }
         }
     }

     public static void main(String[] args) {

         String srcFilePath = "F:\\qw.jpg";
         String descFilePath = "F:\\qw2.jpg";
         compressPicAlibaba(srcFilePath, descFilePath);

     }

 }