发明名称 |
Combining a first digital image and a second background digital image using a key color control signal and a spatial control signal |
摘要 |
A method for combining a first digital image and a second background digital image, both images including pixels having color values, wherein the first digital image includes both a foreground region having foreground color values and a key color region characterized by a key color, as well as a mixed region where the pixel color values are a mixture of the foreground color value and the key color, includes determining a first control signal that indicates the relative proportions of the foreground color value and the key color for pixels in the first digital image; and segmenting the first digital image into a key color region and a non-key color region in which the non-key color region includes pixels in the first digital image that are not in the key color region. The method also includes determining a second control signal that indicates a spatial distance between the pixels in the first digital image and a boundary between the key color region and the non-key color region; and combining the first digital image and the second background digital image in response to the first and second control signals, the key color, and an illuminant color value.
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申请公布号 |
US5937104(A) |
申请公布日期 |
1999.08.10 |
申请号 |
US19970934178 |
申请日期 |
1997.09.19 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
HENDERSON, TODD R.;SPAULDING, KEVIN E.;COUWENHOVEN, DOUGLAS W. |
分类号 |
G06T13/00;H04N9/75;(IPC1-7):G06K15/316 |
主分类号 |
G06T13/00 |
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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