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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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