System for producing a color hardcopy having the color and the t

Details System for producing a color hardcopy having the color and the t System for producing a color hardcopy having the color and the t

1994-06-16

1996-05-28

Rogers, Scott A.

Facsimile and static presentation processing

Natural color facsimile

Image reproduction

358518, 358521, 358523, 358527, H04N 156, H04N 160

Patent

active

055217230

ABSTRACT:
A color image reproduction system of the type having a color monitor, an image processing computer, and a color printer is capable of making a color print that appears as if the original image was captured by a photographic process. The effect is achieved by providing a transform embodied in a three dimensional look-up table formed by composing: a) a transform for transforming the color digital image to original scene exposures; b) a transform for transforming the video scene exposures to photographic scene exposures; c) a transform for transforming photographic scene exposures to channel-independent densities; d) a transform for transforming channel-independent densities to reproduced densities; and e) a transform for transforming the reproduced densities to control signals for driving the color hard copy output means.

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