Background suppression method and apparatus

Details Background suppression method and apparatus Background suppression method and apparatus

2005-07-20

2009-06-23

Haskins, Twyler L (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Color correction

C358S003230, C358S003260, C358S003270

Reexamination Certificate

active

07551334

ABSTRACT:
An original image is received in a red-green-blue color space. Pixels in the original image are converted to a luminance-chrominance color space. Background pixels in the original image are determined by comparing a luminance value of each pixel to a selectable luminance threshold, and comparing chrominance value of each pixel to a predetermined chrominance threshold. Chrominance values of the background pixels in each chrominance channel are adjusted.

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