An original image information to be JPEG encoded, the process is two step: i) removing excess visual information, i.e. the degree of spatial redundancy ii) to remove the redundant information of the data itself, i.e. structure (static) redundancy JPEG coding mainly related to the content includes: i) Color Model Conversion (color model) ii) DCT (Discrete Cosine Transform, Discrete Cosine Transform) iii) rearrangement of the DCT results iv) quantization v) RLE encoding vi) Paradigm Huffman coding vii) DC coding part of the code is implemented in the DM6446 chip JPEG encoding algorithm.

jcpipe.c
jfwddct.c
jpegdata.h
jutils.c
jwrjfif.c
jcdeflts.c
jchuff.c
jcmaster.c
jcmcu.c
jconfig.h

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