I was looking for information about the ISO 10198-3 Annex C of the jpeg variable quantization.
i am Googling tryng to find document too, but i was wondering if in this forum there is someone that has already managed this kinfd of thing
for what i have understand its work like a normal jpeg but in the huffman decodin phase a special code is used to let know that a new quantization must be used to manage the 8x8 MCU
this is a grat idea as it is possible to lossy compress more some part of an image an less lossy on an other more important part of the image.
in some documents i have read that "the new quantization" is exported in the next hufman data for n_bits after the special_code, but when i read the value it is qalways 1 (?)
Cheers