发明名称 |
Method of spatially filtering a digital image using chrominance information |
摘要 |
A method of processing a color digital image having a luminance channel and one or more chrominance channels to improve the tone scale characteristics of the image, includes the steps of: producing a control signal from the one or more chrominance channels; generating a pedestal signal containing mainly low frequency modulation by filtering the luminance channel with a spatial filter, whereby the operation of the spatial filter is modulated by the control signal; and producing a texture signal by subtracting the pedestal signal from the luminance channel.
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申请公布号 |
US2004096103(A1) |
申请公布日期 |
2004.05.20 |
申请号 |
US20020294860 |
申请日期 |
2002.11.14 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
GALLAGHER ANDREW C.;GINDELE EDWARD B. |
分类号 |
G06T5/00;G06T5/40;(IPC1-7):G06T5/00;G06K15/00 |
主分类号 |
G06T5/00 |
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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