Document segmentation for mixed raster content representation

Details Document segmentation for mixed raster content representation Document segmentation for mixed raster content representation

2005-12-23

2010-06-01

Ahmed, Samir A (Department: 2624)

Image analysis

Image compression or coding

Reexamination Certificate

active

07729546

ABSTRACT:
In an array of pixels, a method for segmenting a selected pixel of the array between at least two layers including identifying an N-by-N window centered upon the selected pixel, evaluating at least one pixel in the N-by-N window to determine whether the selected pixel is a potential text element, identifying an M-by-M window centered upon the selected pixel when the evaluation determines that the selected pixel is a potential text element, wherein the M-by-M window is smaller than the N-by-N window, and determining whether the potential text element includes text by comparing at least two pixels within the M-by-M window.

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