| US 7,466,868 B2 | ||
| Determining parameters for adjusting images | ||
| Gregg D. Wilensky, Pacific Palisades, Calif. (US) | ||
| Assigned to Adobe Systems Incorporated, San Jose, Calif. (US) | ||
| Filed on Oct. 03, 2003, as Appl. No. 10/678,423. | ||
| Prior Publication US 2005/0074180 A1, Apr. 07, 2005 | ||
| Int. Cl. G06K 9/40 (2006.01); G06K 9/00 (2006.01) | ||
| U.S. Cl. 382—254 [382/168] | 54 Claims |
| 1. A method for determining a value of an adjustment parameter for adjusting an image, the method comprising:
specifying a first function of a local attribute based on values of the local attribute in the image;
specifying a second function of the local attribute and the adjustment parameter;
calculating an object function value for each of two or more test values of the adjustment parameter, where calculating an
object function value for each test value comprises:
evaluating the first function and the second function at a plurality of values of the local attribute, where evaluating the
second function includes using the test value;
accumulating differences between the first and second function at the plurality of values of the local attribute according
to a functional weight that depends on the value of the local attribute;
based on the calculated object function values and at least one of the two or more test values, determining the value of the
adjustment parameter for adjusting the image.
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