Facsimile and static presentation processing – Natural color facsimile – Color correction
Patent
1994-10-06
1999-09-07
Lee, Thomas D.
Facsimile and static presentation processing
Natural color facsimile
Color correction
358501, 358520, 358530, G03F 308
Patent
active
059495561
ABSTRACT:
An image processing apparatus converts color image data into hue, saturation and luminosity data. When a specific color portion and a range are designated in the hue data, processing for reducing tones is executed based on the designated data. Thereafter, a reverse-conversion into color image data is performed, thereby making it possible to output a high-quality image of an illustration. Further, a histogram of designated hue data is generated, processing for reducing tones is executed based on the histogram, and the data is subsequently reverse-converted into color image data. This makes it possible to output a higher quality image of an illustration.
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Canon Kabushiki Kaisha
Lee Thomas D.
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