发明名称 |
Film image reading system |
摘要 |
A film image reading system includes: an image pickup device which picks up a light image of an image recorded on a film to produce raw image signals corresponding to three colors of the light image and indicative of magnitudes corresponding to light amounts of their respective three colors; a signal processor which processes raw image signals of three colors in accordance with a reference to produce output image signals corresponding to three colors of the light image, the output image signals being operable to ensure a proper color balance; a first calculator which calculates differences between a high magnitude image signal of a particular color and respective high magnitude image signals of the remaining colors; and a second calculator which calculates differences between an average magnitude image signal of the particular color and average magnitude image signals of the remaining colors; and a reference changer which changes the reference of the signal processor based on differences calculated by the first and second calculators.
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申请公布号 |
US5751451(A) |
申请公布日期 |
1998.05.12 |
申请号 |
US19960653700 |
申请日期 |
1996.05.23 |
申请人 |
MINOLTA CO., LTD. |
发明人 |
OGOSHI, TAKESHI;MAEDA, YUKARI |
分类号 |
H04N1/46;H04N1/60;(IPC1-7):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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