Image analysis – Image enhancement or restoration
Patent
1995-05-19
1997-11-18
Couso, Yon J.
Image analysis
Image enhancement or restoration
382162, 382274, 358518, G06K 940
Patent
active
056895909
ABSTRACT:
A density converting unit converts densities concerning respective color components in color-image data for each pixel so as to change the densities concerning respective color components for the pixel into lower densities when the densities concerning respective color components for the pixel are determined to be white or approximately white. The density converting unit converts the densities concerning color components in the color-image data for each pixel so as to change the densities concerning respective color components for the pixel into densities corresponding to white ones when all of the densities concerning respective color components for the pixel are lower than a predetermined threshold density value.
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Imao Kaoru
Shirasawa Hisao
Couso Yon J.
Ricoh & Company, Ltd.
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