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:
Dec. 01, 2009
Filed:
Nov. 30, 2005
Shesha Shah, Bangalore, IN;
Shesha Shah, Bangalore, IN;
Yahoo! Inc., Sunnyvale, CA (US);
Abstract
A method and apparatus for processing image data is provided. Color image data is processed to generate gray scale image data, which may comprise a set of data values. Each data value, of the set of data values, may identify a gray scale value. A frequency distribution that indicates a frequency of occurrence of each gray scale value identified by the set of data values is determined. The uniformity of the frequency distribution is determined. A determination of how close the frequency determination corresponds to a predetermined distribution is made. The color image data is classified as a particular type of image data based on (a) whether the frequency determination corresponds to the predetermined distribution by a first threshold, and (b) whether the uniformity of the frequency distribution exceeds a second threshold.