System and method for extracting grayscale data in accordance with a prescribed tolerance function
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United States of America Patent
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Mar 16, 2010
Grant Date -
Sep 13, 2007
app pub date -
Mar 9, 2006
filing date -
Mar 9, 2006
priority date (Note) -
Expired
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Abstract
In accordance with the present invention, a system and method are described for producing pure gray tones on a multi-color document output device that includes a system for operating on device independent color data having multiple color components, which color data corresponds to one or more associated electronic documents. The system and method function to extract gray data by the use of tristimulus values in a range specified by a functional relationship of a selected tristimulus value.
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