彩色图像的压缩与解压的程序，网上关于图像压缩的程序基本上是黑白图像的压缩，我参考别人黑白图像压缩的源码改写出了彩色图像的压缩与解压的程序，里面包括色域的转换、DCT变换等-Compression of color images online image compression and decompression program, the program is basically a black and white image compression, my reference to the ot