数字图像处理课程综述（英文版+中文翻译）

【文件属性】：
文件名称：数字图像处理课程综述（英文版+中文翻译）
文件大小：44KB
文件格式：DOC
更新时间：2013-02-17 08:26:32
Survey on image compression techniques Image compression is minimizing the size in bytes of a graphics file without degrading the quality of the image to an unaccceptable level. The reduction in file size allows more images to be stored in a given amount of disk or memory space. It also reduces the time required for images to be sent over the Internet or downloaded from Web pages. There are several different ways in which image files can be compressed. For Internet use, the two most common compressed graphic image formats are the JPEG format and the GIF format. The JPEG method is more often used for photographs, while the GIF method is commonly used for line art and other images in which geometric shapes are relatively simple. 图像压缩是指在不影响图像质量，在可接受的水平下，最小化图形存储字节大小。文件大小减少就允许一个磁盘或一定量的内存空间中存储更多的图像。它也降低了图像在互联网上发送或下载网页所需的时间。 图像文件压缩方法有很多种。对于互联网的使用，两种最常见的压缩图形图像格式包括JPEG和GIF格式。JPEG方法更常用于照片，而通常的GIF方法多使用在几何形状相对简单的线条艺术和其他图像。