Image data conversion apparatus, image data conversion program storage medium, and image data re-conversion program storage medium
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United States of America Patent
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Mar 27, 2007
Grant Date -
Apr 4, 2002
app pub date -
Oct 1, 2001
filing date -
Sep 29, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
In an image data conversion apparatus for converting input image data of four colors consisting of cyan, magenta, yellow and black into output image data, there is provided a detection section for detecting an existence of a point or an area on an image in which any one of cyan, magenta and yellow has a value exceeding a first predetermined value, and black has a value exceeding a second predetermined value, in accordance with the input image data, and a conversion section having two modes of a first mode wherein said input image data is converted into output image data which is independent of an existence of said detection section, and a second mode wherein in the event that the detection section detects an existence of the point or the area, the input image data is converted into an output image data which is representative of an existence of the point or the area.
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