图像的峰值信噪比计算方法\ACHuffmanEncoding.m ........................\DCHuffmanEncoding.m ........................\func_DCTJPEG.m ........................\lena.bmp ........................\PSNR.m ........................\Thumbs.db ........................\zigzag.m ........................\图象压缩运行结果.JPG 图像的峰值信噪比计算方法