发明名称 IMAGE PROCESSOR
摘要 <P>PROBLEM TO BE SOLVED: To perform gradation correction which the amount of correction of a low brightness part is larger than that of a high brightness part, and when a large amount of the correction is made, to perform gradation correction avoiding deterioration of contrast. <P>SOLUTION: A controlling part controls a weighting processing part so that contribution of a blurred image generated from a reduced image becomes higher than contribution of a blurred image generated from a reduced image with lower resolution. It also controls the weighting processing part according to the brightness correction levels, so that the larger the amount of correction toward a brighter direction of a dark part brightness, the larger contribution of a blurred image generated from a reduced image becomes to contribution of a blurred image generated from a reduced image with lower resolution. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008048280(A) 申请公布日期 2008.02.28
申请号 JP20060223382 申请日期 2006.08.18
申请人 CANON INC 发明人 NAGAMASA YOSHINOBU
分类号 H04N1/407;G06T5/00 主分类号 H04N1/407
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