发明名称 IMAGING APPARATUS WITH EMPHASIZED CONTRAST
摘要 <P>PROBLEM TO BE SOLVED: To provide an imaging apparatus with emphasized contrast by applying luminance correction to each of a plurality of objects with different luminance so as to obtain excellent images. <P>SOLUTION: A prescribed amount data read section 12a of the imaging apparatus 1 reads data of one line of an image, a median position detection section 12d obtains a median luminance value from a maximum point luminance value detected by a maximum point detection section 12b and a minimum point luminance value detected by a minimum point detection section 12c, a bandwidth is calculated from the maximum point luminance value and the minimum point luminance value, a gamma coefficient for emphasizing the contrast is calculated by each block in a pixel direction of at least one-line data on the basis of the median point luminance value and the bandwidth to obtain a contrast emphasis correction coefficient. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006013863(A) 申请公布日期 2006.01.12
申请号 JP20040187831 申请日期 2004.06.25
申请人 HITACHI ENG CO LTD;IBARAKI HITACHI JOHO SERVICE KK 发明人 HOTSUKI HIROYUKI;KAMINAGA YOSHIAKI;KATANE TADAHIRO
分类号 H04N5/20;G06T5/00;H04N5/243 主分类号 H04N5/20
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