Patent
1990-09-10
1993-05-04
Harkcom, Gary V.
395132, 395157, G06F 1562
Patent
active
052089037
ABSTRACT:
In order to permit a user to predict the density, color balance, and contrast of an image to be printed on a hardcopy printing device, an image on a video color display device is provided with a uniform surround of controllable luminance and chrominance levels, the uniform surround being large enough in proportion to the image to mimic the viewing conditions of the final hardcopy. The presentation of user controls for image manipulation is integrated on the same color display device, with controllable brightness as compared to the controlled, uniform surround, to minimize disruption of the user's visual system as pertains to the perception of density, color balance and contrast. The user controls on the display device are faded away into the controlled, uniform surround for critical judgment of the video image. The user controls are subsequently restored to their original, controlled brightness. The rate at which the user controls fade in and fade out on the display device is controlled. Multiple versions of the image are saved in a memory device for easy recall of individual image versions and provision is made for toggled comparison among individual recalled image versions.
REFERENCES:
patent: 4794386 (1988-12-01), Bedrij et al.
patent: 4876533 (1989-10-01), Barkans
Ba Huynh
Eastman Kodak Company
Harkcom Gary V.
Owens Raymond L.
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