发明名称 |
Systems and methods for obtaining a spatial color profile, and calibrating a marking system |
摘要 |
Tone reproduction curves for calibrating a marking system are obtained using a test pattern with a plurality of patches, preferably a plurality of first test patches extending in a first direction and at least one second test patch extending in a second direction crossing the first direction. Reflectance values are obtained from the first and second test patches. A set of gray balanced tone reproduction curves are obtained based on the reflectance values of the first test patches, and a set of spatial gray balanced tone reproduction curves are obtained based on the reflectance values of the second test patches. |
申请公布号 |
US7295340(B2) |
申请公布日期 |
2007.11.13 |
申请号 |
US20030248387 |
申请日期 |
2003.01.15 |
申请人 |
XEROX CORPORATION |
发明人 |
MESTHA LALIT K.;BOLTE STEVE;SABER ELI;UPDEGRAFF SHAWN |
分类号 |
H04N1/50;H04N1/407;H04N1/60 |
主分类号 |
H04N1/50 |
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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