发明名称 |
Camera-based system for calibrating color displays |
摘要 |
Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a system and apparatus for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which correspond to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.
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申请公布号 |
US7639260(B2) |
申请公布日期 |
2009.12.29 |
申请号 |
US20040012993 |
申请日期 |
2004.12.15 |
申请人 |
XEROX CORPORATION |
发明人 |
BALA RAJA;BRAUN KAREN M.;ROLLESTON ROBERT J. |
分类号 |
G03F3/08;G06K9/00;G06K9/40;G06T1/00;G09G5/00;G09G5/06;H04N1/46;H04N1/60 |
主分类号 |
G03F3/08 |
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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