摘?? 要: 通过分析图像软件的显示原理, 了解图像文件的格式及压缩、放大、还原机制以实现对图像文件的处理, 方便图像 文件的检索、浏览。-Abstract ?? to: software by analyzing the image display principle, to understand the image file format and compression, amplification, reduction mechanism to achieve the processi