Patent ID: 7076101
Filing Date: 2006-07-11
Classification: G06T

Abstract:
1. A method of determining variations of a test image with respect to a reference image, the method comprising: a) storing the reference image in a memory, wherein the reference image comprises a plurality of pixels, wherein each of the pixels comprises at least one value; b) storing the test image in a memory, wherein the test image comprises a plurality of pixels, wherein each of the pixels comprises at least one value; c) determining an average of the values of the pixels included in an array of pixels in the reference image, wherein the array of pixels in the reference image corresponds to a location of a test image pixel in the test image; d) determining an absolute difference between a value of the test image pixel and the average value of the corresponding array of pixels in the reference image; e) comparing the absolute difference with a maximum difference; f) repeating steps c), d), and e) for a plurality of test image pixels; and g) generating a test result indicative of the variations of the test image with respect to the reference image.