Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2008-01-15
2008-01-15
Williams, Kimberly (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S504000, C358S518000, C358S515000, C358S520000, C358S534000, C358S537000
Reexamination Certificate
active
10623944
ABSTRACT:
A method permitting an end user to recalibrate a color reproduction device. The color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, and the desired values of each patch of the test target. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation emphasizes restoration of the overall gray balance of the color reproduction device and can be implemented by modifying the tone reproduction curves or the halftone process used in the color reproduction device.
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Bai Yingjun
Cuciurean-Zapan Clara
Linder Stephen F.
McCandlish Peter D.
Wen Zhenhuan
Burleson Michael
Williams Kimberly
Xerox Corporation
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