Image path utilizing sub-sampled cross-channel image values
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United States of America Patent
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May 7, 2013
Grant Date -
Apr 29, 2010
app pub date -
Oct 27, 2008
filing date -
Oct 27, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A technique for cross-channel correction in real time for digital color printing in which the full resolution value of a selected colorant is combined with low resolution versions of the remaining colorants to provide a basis for correcting the selected colorant based upon the data for the other colorants employed. The pixel values of sub-samples of the remaining colorants are derived from the cell in which the full resolution selected colorant is taken; and, the desired output value is selected from a look-up table established for the known printing process.
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