发明名称 |
A method for preserving image detail when adjusting the contrast of a digital image |
摘要 |
<p>A method for preserving detail when adjusting tone scale of a digital image channel, the method comprises receiving a digital image channel; providing a tone scale function for adjusting the tone scale of the digital image channel; spatial filtering the digital image with a spatial filter which varies with location in the digital image channel according to the control signal producing a space-variant spatial filtered version of the digital image channel; using the tone scale function and the space-variant spatial filtered version of the digital image channel to produce an enhanced digital image channel. <IMAGE></p> |
申请公布号 |
EP0971314(A2) |
申请公布日期 |
2000.01.12 |
申请号 |
EP19990202039 |
申请日期 |
1999.06.24 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
GALLAGHER, ANDREW CHARLES;GINDELE, EDWARD BROOKS |
分类号 |
H04N1/60;G06T5/00;G06T5/20;G06T5/40;G09G3/20;G09G5/36;H04N1/407;H04N1/46;(IPC1-7):G06T5/00 |
主分类号 |
H04N1/60 |
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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