发明名称 |
Sharpness emphasizing method and machine used in a picture reproducing machine |
摘要 |
A sharpness emphasizing method and machine used in a picture reproducing machine such as a color separator, wherein a sharpness emphasizing signal is prepared from a main signal and an unsharp signal, which are obtained by scanning an original picture, in a sharpness emphasizing signal circuit, wherein a corrected sharpness emphasizing signal is selectively produced from the sharpness emphasizing signal depending on the leap of the unsharp signal in a sharpness emphasizing component pickup circuit, and wherein the corrected sharpness emphasizing signal is added to the main signal in a composer circuit, thereby obtaining a picture signal whose sharpness is emphasized in its detail portions.
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申请公布号 |
US4335407(A) |
申请公布日期 |
1982.06.15 |
申请号 |
US19800145443 |
申请日期 |
1980.05.01 |
申请人 |
DAINIPPON SCREEN SEIZO KABUSHIKI KAISHA |
发明人 |
ATOJI, HITOMI;KUNISAWA, MASUO;HIRATA, ATSURO;ARAKI, YASUAKI |
分类号 |
G03F1/00;G03F3/08;H04N1/00;H04N1/409;(IPC1-7):H04N1/40 |
主分类号 |
G03F1/00 |
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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