IMPROVED ERROR DIFFUSION SYSTEM

For highlight or dark areas of images, the error terms (52) diffused to neighbourhood pixels includes components which are periodic with respect to a wavelength where the wavelength is a function of the density level of the pixels from which the error terms are diffused. In this manner, patterned ar...

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Bibliographic Details
Main Author BOWERS, HARRY
Format Patent
LanguageEnglish
French
Published 07.01.1993
Edition5
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:For highlight or dark areas of images, the error terms (52) diffused to neighbourhood pixels includes components which are periodic with respect to a wavelength where the wavelength is a function of the density level of the pixels from which the error terms are diffused. In this manner, patterned artifacts or "worms" in the highlight or dark areas of the images are reduced or illuminated.
Bibliography:Application Number: CA19922112469