Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1995-04-26
1998-04-14
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358529, 358515, 358518, 358501, 358537, 358538, 382167, C06F 1500, H04N 146, G03F 308
Patent
active
057403333
ABSTRACT:
With the present invention, an inputted color image is separated to image signals for three colors of Red, Green and Blue, determination is made as to whether a remarked pixel is for a specified color or not according to the image signals for the separated three colors, brightness data for the inputted color image is detected, determination is made as to whether a remarked pixel is for a white color or a black color depending on the detected brightness data, a pixel determined as for a specified color is converted to a specified color, and a pixel determined as not for a specified color is converted to a white color or a black color according to a result of determination as to whether the remarked pixel is for a white color or a black color, so that a separation area for a specified color can clearly be defined.
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Ito Masaaki
Kamon Kouichi
Kawamoto Hiroyuki
Namizuka Yoshiyuki
Tone Takeharu
Coles Sr. Edward L.
Harris Tia M.
Ricoh & Company, Ltd.
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