Patent Number: 8,792,714

Title: Detecting anti-aliased text in digital images

Abstract: A method, including automatically identifying, by a processor, a region of a digital image containing first pixels, each situated on a positive horizontal gradient, and second pixels in proximity to the first pixels, each situated on a negative horizontal gradient. A distribution of intensities of a color channel is then calculated for the pixels in the region, and the distribution is analyzed in order to detect whether the region contains anti-aliased text.

Inventors: Geva; Amir (Yokneam, IL), Gleichman; Sivan (Haifa, IL), Marder; Mattias (Haifa, IL)

Assignee: International Business Machines Corporation

International Classification: G06K 9/00 (20060101); G06K 9/66 (20060101); G06K 9/46 (20060101); G06K 9/48 (20060101)

Expiration Date: 7/29/12018