图像变换,BMP图形变换，包括bmp文件的读取，写入，变换-Image conversion, BMP graphics transformation, including bmp file read, written, or transformation. .

软件简介： 本代码通过对image类的序列化,实现读取jpg,gif,bmp格式的图像文件-Software descr iption: the code through the serialization of the image class, read the JPG, GIF, BMP image file format