Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1993-01-06
1998-05-19
Jankus, Almis R.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
G06T 1100
Patent
active
057541841
ABSTRACT:
A color management system that converts or transforms color signals between device dependent color spaces and a device-independent space using reference image viewing conditions for the device-independent space. A device transform converts input color signals of an input image in an input space into device-independent color signals and a visual adaption transform converts the device-independent input color signals into device-independent signals that take into account the input viewing conditions, the reference viewing conditions and adaption characteristics of the human visual system to the standard viewing conditions. This provides intermediate signals which represent device independent corresponding colorimetric values that would be required to visually match the appearance of the input image, as seen in its input viewing conditions under the defined reference viewing conditions of the device independent space. The intermediate signals can then be transformed into output color signals for output, taking into account the reference and output viewing conditions, and the particular color reproduction and gamut capabilities of the output device. The color signals can then be converted into renderable output signals and rendered on the output device. A preview output image for a preview display device can be produced after taking into account the output device characteristics and viewing environment. Transforms for intent and editing, such as sharpening the image or cutting and pasting, can be performed in the intermediate device-independent space and previewed before rendering by the output device.
REFERENCES:
patent: 3893166 (1975-07-01), Pugsley
patent: 4037249 (1977-07-01), Pugsley
patent: 4060829 (1977-11-01), Sakamoto
patent: 4346402 (1982-08-01), Pugsley
patent: 4409614 (1983-10-01), Eichler et al.
patent: 4488245 (1984-12-01), Dalke et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4523852 (1985-06-01), Bauer
patent: 4626901 (1986-12-01), Tanioka
patent: 4679074 (1987-07-01), Sugiura et al.
patent: 4721951 (1988-01-01), Holler
patent: 4751535 (1988-06-01), Myers
patent: 4751569 (1988-06-01), Clinton et al.
patent: 4755810 (1988-07-01), Knierim
patent: 4812902 (1989-03-01), Fuchsberger
patent: 4812903 (1989-03-01), Wagensonner et al.
patent: 4825296 (1989-04-01), Wagensonner et al.
patent: 4829370 (1989-05-01), Mayne et al.
patent: 4837722 (1989-06-01), Sara
patent: 4839721 (1989-06-01), Abdulwahab et al.
patent: 4839722 (1989-06-01), Barry et al.
patent: 4841360 (1989-06-01), Birgmeir
patent: 4875032 (1989-10-01), McManus et al.
patent: 4888636 (1989-12-01), Abe
patent: 4893181 (1990-01-01), Yeomans
patent: 4924323 (1990-05-01), Numakura et al.
patent: 4929978 (1990-05-01), Kanamori et al.
patent: 4941038 (1990-07-01), Walowit
patent: 4945406 (1990-07-01), Cok
patent: 4956718 (1990-09-01), Numakura et al.
patent: 4959790 (1990-09-01), Morgan
patent: 4985853 (1991-01-01), Taylor et al.
patent: 4992862 (1991-02-01), Gabor
patent: 5042078 (1991-08-01), Oshikoshi et al.
patent: 5049985 (1991-09-01), Outa
patent: 5057913 (1991-10-01), Nagata et al.
patent: 5060060 (1991-10-01), Udagawa et al.
patent: 5072305 (1991-12-01), Numakura et al.
patent: 5073818 (1991-12-01), Iida
patent: 5077605 (1991-12-01), Ikeda et al.
patent: 5146328 (1992-09-01), Yamasaki et al.
patent: 5148288 (1992-09-01), Hannah
patent: 5208911 (1993-05-01), Newman et al.
patent: 5276779 (1994-01-01), Statt
patent: 5293258 (1994-03-01), Dattilo
patent: 5309257 (1994-05-01), Bonino et al.
patent: 5463480 (1995-10-01), MacDonald et al.
Tony Johnson and Ronnier Luo, Optimising Colour Reproduction, May 1991, Paper presented at 21st LARIGAL conference, Pittsburgh.
U.S. application No. 07/678,485, filed Apr. 1, 1991, David J. Statt.
White-Point Transformation and Color Data Interchange, R.R. Buckley, P.G. Roetling, Xerox Webster Research Center, Webster, NY, SID 92 Digest, 1992, pp. 560-563.
White-Point Tranforms for Device-Independent Color Imaging, R.J. Motta, Hewlett-Packard Laboratories, Palo-Alto, CA, SID 92 Digest, 1992, pp. 555-559.
Color WYSIWYG: A Combination of Device Colorimetric Characterization and Appearance Modeling, R.S. Berns, Rochester Institute of Technology, Rochester, NY, SID 92 Digest, 1992, pp. 549-552.
Invited Address: Color Gamuts and the Ideal Printer, G.K. Starkweather, Apple Computer, Inc., Cupertino, CA, SID 92 Digest, 1992, pp. 564-567.
LeRoy E. DeMarsh and Edward J. Giorgianni, Color Science For Imaging Systems, pp. 44-52, Sep. 1989, Physics Today, New York, NY.
U.S. application No. 07/455,541, filed Dec. 22, 1989, Giorgianni et al.
Giorgianni Edward Joseph
Ring Stuart Frederick
Eastman Kodak Company
Jankus Almis R.
Watkins Peyton C.
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