INK JET PRINTING APPARATUS, IMAGE PROCESSING APPARATUS, AND METHOD FOR PROCESSING IMAGE

An ink jet printing apparatus which inhibits possible bleeding by thinning color data adjacent to black data and enables printing free from image quality degradation such as gradation skip is provided. Specifically, when only one pixel has color data and pixels located vertically and horizontally ad...

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Bibliographic Details
Main Authors NAGAMURA MITSUTOSHI, KANEMATSU DAIGORO, FURUICHI TOMOMI, SHIMAKAWA MASAHARU
Format Patent
LanguageEnglish
Published 11.10.2012
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:An ink jet printing apparatus which inhibits possible bleeding by thinning color data adjacent to black data and enables printing free from image quality degradation such as gradation skip is provided. Specifically, when only one pixel has color data and pixels located vertically and horizontally adjacent to that pixel have no color data, an isolated point pixel containing a color dot is detected only in that pixel. Then, the dots other than the isolated point are thinned-out. This makes it possible to inhibit possible bleeding at the boundary between a color area and a black area and to achieve proper printing with the appropriate gradation of the entire image maintained.
Bibliography:Application Number: US201213530075