Abstract A color image processing apparatus for converting original image data in the input system into required copy image data based on a lookup table. The apparatus has a memory for storing corrective functions used for the formation of the lookup table, a command generator for generating a command signal for starting the formation of the lookup table and table forming system for calling the corrective functions from the memory each time the command signal is generated from the command generator and for forming the lookup table based on the corrective functions. For faithful reproduction of the color image of an original image on a copy image, white points and the achromatic axes of the original image conform with those of the copy image and, at the same time, the ranges of color reproduction of the original image conform with the copy image. The white point, achromatic axis, and range of color reproduction of a color image exhibited as an original image on a color CRT display and those of a color image printed out as a copy image on an image forming device such as an ink jet printer, for example, are allowed to conform with each other.
Inventors
👤 Tetsuya C/O Minolta Camera Kabushiki Kaisha Iida
A color image processing apparatus for converting original image data in the input system into required copy image data based on a lookup table, which apparatus comprises function storing means for storing corrective functions used for the formation of said lookup table, command means for generating a command signal for starting the formation of said lookup table, and table forming means for calling said corrective functions from said function storing means each time said command signal is generated from said command means and for forming said lookup table based on said corrective functions.
Claim 2
Dependent Claim
93 words
A color image processing apparatus for converting original image data in the input system into required copy image data based on a lookup table, which apparatus comprises function storing means for storing corrective functions used for the formation of said lookup table, command means for generating a command signal for starting the formation of said lookup table, and table forming means for calling said corrective functions from said function storing means each time said command signal is generated from said command means and for forming said lookup table based on said corrective functions.
Claim 3
Dependent Claim
23 words
A color image processing apparatus according to Claim 3, wherein said function storing means are capable of storing a plurality of corrective functions.
Claim 4
Dependent Claim
42 words
A color image processing apparatus according to Claim 4, wherein said command means comprises a select switch and a multiplexer and serves the purpose of selecting a desired corrective function from a plurality of corrective functions stored in said function output means.
Claim 5
Dependent Claim
20 words
A color image processing apparatus according to Claim 3. wherein said table forming means comprises a computer and a memory.
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