Color Integration for Display and Print via Saturation-Adaptive Correction
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Solution Overview
Problem
Conventional color correction methods fail to accurately integrate colors between images displayed on a screen and those printed on a medium due to differences in illumination environments and the varying perception of white, leading to inconsistent color perception and difficulty in adjusting low-saturation colors like gray.
Innovation Solution
A color processing device that obtains color data from both displayed and printed images, creates a conversion relationship to correct image data for output, increasing correction as colors approach gray and reducing correction as they approach white, thereby integrating colors across different mediums and environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional color correction methods are used, then color data can be obtained from both display and print, but color integration between display and print is inaccurate
Solution Approach 1:
The patent applies local quality by differentiating correction strategies for different color regions. Specifically, it increases correction amounts for low-saturation colors (grays) while reducing correction amounts for high-saturation colors, recognizing that different color regions require different correction intensities to achieve accurate color integration between display and print
Solution Approach 2:
The patent changes the correction parameter (correction amount) based on the saturation level of colors. By dynamically adjusting the correction amount according to color saturation, the system achieves more accurate color integration, particularly for low-saturation colors that were previously difficult to adjust
2Manufacturing precision
If uniform color correction is applied, then processing is simple, but low-saturation colors like gray cannot be adjusted accurately
Solution Approach 1:
The patent implements local quality by applying different correction amounts to different color saturation regions. Low-saturation colors (grays) receive higher correction amounts while high-saturation colors receive lower correction amounts, enabling accurate adjustment of previously difficult-to-correct gray tones without requiring complex manual processing
Solution Approach 2:
The correction system is made dynamic by automatically adjusting correction amounts based on color saturation levels. This dynamic correction approach allows the system to adaptively handle different color regions, achieving precise low-saturation color adjustment through automated processing rather than static uniform correction
3Measurement precision
If high correction amounts are applied to all colors, then color integration improves, but natural appearance of printed images deteriorates
Solution Approach 1:
The patent applies local quality by restricting high correction amounts only to low-saturation color regions (grays) while maintaining lower correction amounts for high-saturation colors. This selective correction approach achieves accurate color integration for grays without over-correcting saturated colors, thereby preserving the natural appearance of printed images
Solution Approach 2:
The patent applies partial action by focusing correction efforts only where needed (low-saturation colors) rather than applying uniform correction to all colors. This partial correction approach achieves sufficient color integration accuracy for critical gray regions while avoiding excessive correction that would degrade the natural appearance of saturated color regions
Data Source
AI summary
A color processing device includes: a color data obtaining unit obtaining color data of a first image displayed on a display based on image data as first color data and color data of a second image formed on a recording medium by an image forming device based on the image data as second color data; and a conversion relationship creation unit creating a conversion relationship to correct the image data to be outputted to the image forming device based on the first color data and the second color data to integrate colors of the images displayed on the display and formed by the image forming device, wherein the conversion relationship creation unit creates the conversion relationship to increase a correction amount as a color to be corrected comes closer to gray and to reduce a correction amount as a color to be corrected comes closer to white.