Introduction - If you have any usage issues, please Google them yourself
Contains the eight kinds of gray-scale images jpeg lossless compression of the prediction method, which is used to study jpeg loseless compression very good example. idc.h for the header files, image_size.c and readimage.c used to read the target file size and each pixel gray value, jpegll_enc.c and jpegll_dec.c for encoding and decoding files.