Color image recording device with color edit and conversion proc

Details Color image recording device with color edit and conversion proc Color image recording device with color edit and conversion proc

1992-05-13

1993-04-06

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 76, 358 80, H04N 129, H04N 1387, H04N 146

Patent

active

052008320

ABSTRACT:
A color image recording device for use in a color copying machine, a color facsimile, a color printer and the like, which has a function to perform color edit processings including a color conversion processing, a coloring processing and the like.editing with ease and with high accuracy. Data B, G, and R output from an image read unit are converted to data L*, a*, and b* respectively by first color signal conversion unit and further the data a* and b* are then converted to data H and C by third color signal conversion unit. Image data V, H and C are color edited by image edit block and the output thereof H and C are converted to a* and b* respectively by fourth color signal conversion unit. The outputs of the first color signal conversion unit are also input to delay unit, are delayed by a time equal to a processing time in image edit unit by the delay unit, and are then input to selector unit. The selector unit, in accordance with a switching control signal S.sub.cont output from the image edit block, outputs either of the color edited data L*, a* and b* that are output from the image edit unit or the data L*, a* and b* that are output from the delay unit.

REFERENCES:
patent: 5060060 (1991-10-01), Udagawa

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