In the ADRC processing, a picture is divided into blocks, the maximum value MAX and the minimum value MIN of the pixel value of each block are detected and DRMAXMIN is set as a local dynamic range of each block. The result of ADRC processing obtained by dividing subtracted values obtained by subtracting...http://www.google.ca/patents/US6636640?utm_source=gb-gplus-sharePatent US6636640 - Integrative encoding system and adaptive decoding system