Facsimile and static presentation processing – Natural color facsimile – Color correction
Patent
1996-02-12
1998-09-01
Voeltz, Emanuel Todd
Facsimile and static presentation processing
Natural color facsimile
Color correction
358520, 382167, G03F 300
Patent
active
058018549
ABSTRACT:
A method of displaying color images, intended to be displayed on a first color display device, on a second color display device having a color gamut (2) different from a color gamut (1) of the first color display device. The method includes a first step of determining a plurality of input extrema color values (RGB), within the color gamut (1) of the first color display device and at the extrema of the gamut of the first color display. Next, the method determines a plurality of output extrema color values (R'G'B') corresponding to the input extrema color values (RGB), within the color gamut (2) of the second color display and at the extrema of the gamut (2) of the second color display. Then, the method determines a mapping for substantially all the values within the color gamut (1) of the first color display to substantially all the values within the gamut (2) of the second color display, the mapping substantially preserving the relative value of differences between color values relative to the extent of the gamut (1) of the first color space and differences between corresponding color values in the gamut (2) of the second color space relative to the extent of the gamut (2) of the second color space.
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Canon Information Systems Research Australia Pty Ltd
Cole Tony M.
Todd Voeltz Emanuel
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