发明名称 |
Method of generating a threshold matrix for producing a color separation, method of reproducing a color image, apparatus for producing a color separation, and threshold matrix |
摘要 |
Threshold matrixes for a C-separation and an M-separation of main colors are used to convert a continuous-tone image subjected to color separation into dot patterns for the C-separation and the M-separation. The dot patterns are binary images in which no screen ruling or screen angle is defined. Then, a color image is reproduced by overlaying the dot patterns for the C-separation and the M-separation. When the dot patterns for the C-separation and the M-separation are converted into patterns in the frequency domain, main frequency components obtained by the conversion have a substantially-constant predetermined pattern frequency for all angles, and the intensity distribution of the main frequency components is varied based on the C-separation and the M-separation.
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申请公布号 |
US2006164699(A1) |
申请公布日期 |
2006.07.27 |
申请号 |
US20060338831 |
申请日期 |
2006.01.25 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
INOUE YOSHIAKI |
分类号 |
H04N1/46 |
主分类号 |
H04N1/46 |
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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