发明名称 PICTURE PROCESSING METHOD AND PICTURE PROCESSOR
摘要 PROBLEM TO BE SOLVED: To provide a picture processing method and a picture processor, which can correct a gradation skip while the quality of a whole picture is maintained. SOLUTION: In LUT, it is set whether random data is added or not at every area in color picture data displayed by address bit '1' and '2' (data bit 7). Then, ON/OFF of random number addition can be switched in accordance with a character area or an area out of the character area (address bit '0'). Thus, random number data is added only in the area where the correction of the gradation skip is required and the remaining area can maintain an original picture.
申请公布号 JP2001218021(A) 申请公布日期 2001.08.10
申请号 JP20000028215 申请日期 2000.02.04
申请人 CANON INC 发明人 MIMA TAKESHI
分类号 H04N1/387;G03G15/01;G06T5/20;H04N1/46;H04N1/60;(IPC1-7):H04N1/387 主分类号 H04N1/387
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