Image analysis – Color image processing
Patent
1996-05-08
1999-07-13
Tran, Phuoc
Image analysis
Color image processing
358534, 358535, G06K 900
Patent
active
059237740
ABSTRACT:
A gray component replacement method for each pixel of a continuous tone image, first obtains intermediate halftone colorant values by applying any suitable halftoning technique to continuous tone colorant values. Halftone output values at each pixel, including a black output value, are determined based on the intermediate halftone values. If desired, halftone output values can be determined based on both the intermediate halftone values and the continuous tone colorant values.
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Canon Information & Systems, Inc.
Tran Phuoc
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