Conversion of output device color values to minimize image...

Details Conversion of output device color values to minimize image... Conversion of output device color values to minimize image...

2007-09-25

2009-08-11

Chen, Wenpeng (Department: 2624)

Image analysis

Color image processing

Color correction

C358S520000

Reexamination Certificate

active

07574041

ABSTRACT:
Undesirable artifacts appearing in color images, such as blooming or smudging around the edges of text, are avoided through selective reduction of the color gamut for objects which form the image. Individual component color values are modified by taking into account combinations of colors and their effect upon the artifacts to be eliminated. Only those parameter values which contribute to the artifact are modified. Other parameter values are left intact, to maintain the original image characteristics. When a color value is modified, all components of that color are modified in a symmetrical manner, to preserve the hue of the original color. The impact on the image is further minimized by selectively applying color correction only to those objects in which the artifact is pronounced.

REFERENCES:
patent: 4992862 (1991-02-01), Gabor
patent: 5042078 (1991-08-01), Oshikoshi et al.
patent: 5170443 (1992-12-01), Todd
patent: 5185661 (1993-02-01), Ng
patent: 5231504 (1993-07-01), Magee
patent: 5233684 (1993-08-01), Ulichney
patent: 5299291 (1994-03-01), Ruetz
patent: 5485278 (1996-01-01), Nakajima
patent: 5539540 (1996-07-01), Spaulding et al.
patent: 5553160 (1996-09-01), Dawson
patent: 5596428 (1997-01-01), Tytgat et al.
patent: 5742296 (1998-04-01), Yamada et al.
patent: 5764807 (1998-06-01), Pearlman et al.
patent: 5828780 (1998-10-01), Suzuki et al.
patent: 6268930 (2001-07-01), Ohta et al.
patent: 6571011 (2003-05-01), Andresen et al.
patent: 7274817 (2007-09-01), Andresen et al.

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