Write your own jpeg compression, and write their own DCT and IDCT, did not use huffman coding, because too difficult, using run-length encoding, you can directly run the compression ratio to meet the requirements. Document details the pay code.

Lena.bmp
Lena2.bmp
main.m
mountain.bmp
mountain2.bmp
xj_dct2.m
xj_idct2.m
xj_invZigzag.m
xj_PSNR.m
xj_toZigzag.m
代码文档说明.doc

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