Color fringe desaturation for electronic imagers

Details Color fringe desaturation for electronic imagers Color fringe desaturation for electronic imagers

2005-05-03

2009-08-18

Werner, Brian P (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S167000, C382S257000, C382S266000, C382S270000, C382S274000, C358S523000, C345S028000

Reexamination Certificate

active

07577311

ABSTRACT:
A method for correcting colored fringe artifacts in a region of an image around saturated pixels captured by an electronic imager associated with a color filter array, includes providing a threshold map of the image based on thresholding one or more color channels with a common or separate threshold value for each color channel; providing a first edge map by dilating the threshold map as a function of the color fringe width, producing a first dilated threshold map and subtracting the threshold map from the first dilated threshold map; and color-desaturating image pixels that correspond to the first edge map.

REFERENCES:
patent: 5832134 (1998-11-01), Avinash et al.
patent: 6058218 (2000-05-01), Cline
patent: 6741755 (2004-05-01), Blake et al.
patent: 2006/0017855 (2006-01-01), Yamada
patent: 2007/0035641 (2007-02-01), Yamada et al.
patent: 0441499 (1997-04-01), None
patent: 0439333 (1997-12-01), None
Underwood et al., “Color Subtractive-Computer-Assisted Image Analysis for Quantification of Cutaneous Nerves in a Diabetic Mouse Model”, The Journal of Histochemistry & Cytochemistry, vol. 49, No. 10, 2001, pp. 1285-1291.

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