Facsimile and static presentation processing – Natural color facsimile – Color correction
Patent
1998-06-16
2000-05-30
Williams, Kimberly A.
Facsimile and static presentation processing
Natural color facsimile
Color correction
358529, 358522, 358509, H04N 146, G03F 308
Patent
active
060697164
ABSTRACT:
A color-image reader reads a recorded color image from a recording medium, and has an image sensor for sensing the color image as at least a first and second regular series of monochromatic image signals during a regular reading operation. A first optimal exposure period is determined regarding the first regular series of image signals, and a second optimal exposure period is determined regarding the second regular series of image signals. A first set of color-correction parameters is determined based on a first provisional series of image signals, sensed from the color image by the image sensor over the first optimal exposure period. A second set of color-correction parameters is determined based on a second provisional series of image signals, sensed from the color image by the image sensor over the second optimal exposure period. A color balance is performed among the first and second regular series of image signals by using the first and second sets of color-correction parameters.
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Asahi Kogyo Kabushiki Kaisha
Williams Kimberly A.
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