06268939 is referenced by 183 patents and cites 18 patents.

The present invention is directed to a method and apparatus for improving the efficiency of color correcting subsampled luminance and chrominance based data. More specifically, the present invention is directed to a method of applying a full conversion between color spaces for one pixel in a selected pixel block. Chrominance values are assigned to the remaining pixels based upon their luminance values relative to the luminance value of the converted pixel. The invention may be used to convert between various types of color spaces, and may be used in the processing of both device dependent and device independent data.

Title
Method and apparatus for correcting luminance and chrominance data in digital color images
Application Number
9/4650
Publication Number
6268939 (B1)
Application Date
January 8, 1998
Publication Date
July 31, 2001
Inventor
Thyagarajan Balasubramanian
Webster
NY, US
R Victor Klassen
Webster
NY, US
Agent
Philip E Blair
US
Aditya Krishnan
US
Michelle W Waites
US
Assignee
Xerox Corporation
CT, US
IPC
G03F 3/08
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