Method for image segmentation from proved detection of...

Details Method for image segmentation from proved detection of... Method for image segmentation from proved detection of...

2008-05-27

2008-05-27

Bella, Matthew C. (Department: 2624)

Image analysis

Image segmentation

C382S171000, C382S175000, C382S274000, C382S232000, C382S190000

Reexamination Certificate

active

07379593

ABSTRACT:
A method is provided for segmenting scanned image data in accordance with mixed raster content processing, further including windowing for purposes of extracting particularly classifiable objects, i.e., text, graphics or pictures. Application of predetermined parameter sets selected for more precise identification of the extracted objects are applied to the data for object extraction, object selection, color uniformity, and clustering for coloring similarity. A page background detection feature uses dual thresholding for segregating text (darker) areas from non-text (brighter) areas. Two histograms are created for the respective areas. Thresholds are generated from the two histograms and applied to the respective areas separately.

REFERENCES:
patent: 5767978 (1998-06-01), Revankar et al.
patent: 7184589 (2007-02-01), Okubo
patent: 7327882 (2008-02-01), Wang et al.
U.S. Appl. No. 10/866,850, filed, Jun. 14, 2003, Z. Fan.

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