The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1998
Filed:
Feb. 12, 1996
William Clark Naylor, Jr, Santa Clara, CA (US);
Canon Information Systems Research Australia Pty Ltd, North Ryde, AU;
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.