Ink jet printing apparatus, image processing apparatus, and method for processing image
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United States of America Patent
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Jul 24, 2012
Grant Date -
Oct 4, 2007
app pub date -
Mar 22, 2007
filing date -
Mar 31, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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.
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Cited Art Landscape
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