Image analysis – Color image processing – Color correction
Patent
1999-05-06
2000-08-01
Boudreau, Leo H.
Image analysis
Color image processing
Color correction
382162, 382233, 382250, 358518, G06K 900, G06K 936, G06K 946, G06K 938, G03F 308
Patent
active
060978384
ABSTRACT:
The present invention is a method for the color correction of digital images that have been compressed. In a preferred embodiment, aspects of the color correction are carried out on the compressed image data to improve computational efficiency. One of a number of alternative methods is employed to accomplish the color correction on lossy or losslessly compressed images. The color transformation process accomplishes color correction on compressed image data in conjunction with compression or decompression operations. A second, simplified phase of the color correction may be applied subsequently to the decompressed image data in certain embodiments. Accordingly, the technique has application to any number of color imaging systems, including digital printers and copiers where there is a necessity to color correct compressed digital images
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Balasubramanian Thyagarajan
de Queiroz Ricardo L.
Harrington Steven J.
Klassen R. Victor
Basch Duane
Blair Phillip
Boudreau Leo H.
Costello Mark
Novik Dmitry A.
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