Unsharp masking for draft mode rendering of digital images
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United States of America Patent
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-
Apr 4, 2000
Grant Date -
N/A
app pub date -
Nov 17, 1997
filing date -
Nov 17, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
An engine renders digitally represented images in a reduced marking material mode and in other modes. A digitally represented unsharp mask of an image is produced and combined with the image. When in the reduced marking material mode, the unsharp mask is given a relatively high weight, such as 2.0 or higher. When in another mode, such as a normal printing mode, the unsharp mask is given substantially less weight, such as about 1.0.
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