发明名称 |
Tonal conversion method for pictures. |
摘要 |
<p>An original continuous-tone picture is converted into a halftone picture, which is to be reproduced, on the basis of pictorial information from the original picture. The information is processed in such a way that the base density of a desired control point on the original picture and the halftone intensity of a corresponding control point on the halftone picture are correlated in accordance with a specific conversion formula.</p> |
申请公布号 |
EP0282305(A2) |
申请公布日期 |
1988.09.14 |
申请号 |
EP19880302094 |
申请日期 |
1988.03.10 |
申请人 |
YAMATOYA & CO., LTD. |
发明人 |
NUMAKURA, TAKASHI;NUMAKURA, IWAO;KITAZAWA, SUSUMU |
分类号 |
G03F5/00;G06T5/00;H04N1/405;H04N1/407 |
主分类号 |
G03F5/00 |
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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