Patent ID: 7627166
Filing Date: 2009-12-01
Classification: G06K

Abstract:
1. A method for processing image data, comprising: processing color image data to generate gray scale image data, wherein the gray scale image data comprises a set of data values, wherein each data value of the set of data values identifies a gray scale value of a sequence of gray scale values; determining a first measure, wherein the first measure is a frequency distribution that indicates a frequency of occurrence of each gray scale value, of the sequence of gray scale values, identified by the set of data values; determining a second measure that indicates the uniformity of the first measure; determining a third measure that indicates how close the first measure corresponds to a second frequency distribution; and upon determining that the third measure exceeds a first threshold and the second measure exceeds a second threshold, classifying the color image data as a first type of image data; wherein the image data is processed by one or more processors.