发明名称 |
Color corrector in an apparatus for producing color image |
摘要 |
A color corrector for correcting chromaticity of a color image to be reproduced is provided in a color printer or a CRT display device for reproducing a color image from respective signals corresponding to predetermined primary colors of a plurality of primary colors constituting the color image. This color corrector comprises: a corrective operation circuit for executing an operation between a color correction coefficient matrix and signals corresponding to the primary colors to correct relative levels of the signals corresponding to the primary colors; a gray component extraction circuit for making level comparison between the signals corresponding to the primary colors to thereby extract a gray component; a correction signal output circuit for executing an operation between the extracted gray component and correction coefficients determined by the matrix to output gray balance correction signals every primary colors; and an adding circuit for adding signals of which levels are corrected in correspondence with respective primary colors outputted from the corrective operation circuit to outputs from the correction signal output circuit.
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申请公布号 |
US5303071(A) |
申请公布日期 |
1994.04.12 |
申请号 |
US19930073282 |
申请日期 |
1993.06.07 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
KAKIMURA, YOSHIAKI |
分类号 |
B41J2/525;B41J2/00;H04N1/46;H04N1/60;H04N9/00;H04N9/64;H04N9/73;H04N9/79;(IPC1-7):H04N1/46 |
主分类号 |
B41J2/525 |
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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