| US 7,457,003 B1 | ||
| Color management for limited gamut devices | ||
| Gabriel Marcu, San Jose, Calif. (US); Steve Swen, Cupertino, Calif. (US); and Luke Stanislaw Wallis, San Jose, Calif. (US) | ||
| Assigned to Apple Inc., Cupertino, Calif. (US) | ||
| Filed on Jan. 16, 2007, as Appl. No. 11/654,253. | ||
| Application 11/654253 is a continuation of application No. 10/138363, filed on May 02, 2002. | ||
| Int. Cl. G06F 15/00 (2006.01); G03F 3/08 (2006.01); G06K 9/00 (2006.01); G09G 5/02 (2006.01) | ||
| U.S. Cl. 358—1.9 [358/518; 358/520; 382/162; 382/166; 382/167; 345/589; 345/590; 345/591] | 26 Claims |
| 1. A method to determine a quality of a real gamut of a device, the method comprising:
quantifying a size of the real gamut by computing a first parameter representative of an area of the real gamut;
quantifying a threshold gamut size by computing a second parameter representative of an area of a threshold gamut;
comparing the size of the real gamut to the threshold gamut size by comparing the first parameter to the second parameter;
determining the quality of the real gamut of the device based on the comparison of the size of the real gamut to the gamut
threshold size; and
substituting a virtual gamut for the real gamut during color manipulation in response to determining the quality of the real
gamut.
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