Color Simulation for Viewing Condition Accuracy
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Solution Overview
Problem
Current color printing technologies cannot effectively simulate and compare the appearance of images under different viewing conditions without physical printing and light source devices, limiting the ability to check color differences accurately.
Innovation Solution
An information processing device that accepts image data and allows users to set multiple viewing conditions, converting the data into output images adjusted for each condition using spectral information profiles, enabling the generation of display information showing the differences between these conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color printing is executed to check image appearance under different viewing conditions, then the accuracy of color difference checking is improved, but the complexity of the system increases due to requiring multiple light source devices and physical printing
Solution Approach 1:
The patent creates virtual copies of different viewing conditions through software simulation rather than requiring physical light source devices. The color simulation unit generates simulated images showing how the print image would appear under various illumination conditions, eliminating the need for multiple physical light sources while maintaining the ability to accurately check color differences
Solution Approach 2:
The patent replaces the mechanical/physical system of multiple light source devices and physical printing with an information processing system that uses color conversion units and simulation algorithms. The physical act of printing and viewing under different lights is substituted with digital color space conversions and simulated image generation
2Measurement precision
If multiple light source devices are used to check image appearance under different viewing conditions, then the accuracy of color difference checking is improved, but the cost and space requirements increase
Solution Approach 1:
The color simulation unit serves multiple functions by simulating various viewing conditions through software. A single information processing device can generate simulated images for multiple different illumination conditions (different light sources, viewing angles, environments) without requiring separate physical devices for each condition, making the system universal and multi-functional
3Measurement precision
If physical printing is required to check image appearance, then the accuracy of color difference checking is improved, but the productivity and convenience decrease
Solution Approach 1:
The patent performs preliminary color simulation and adjustment before actual printing. The color simulation unit allows users to preview how the image will appear under different viewing conditions and make necessary adjustments in advance, so that when printing occurs, minimal rework is needed, thereby improving overall productivity
Solution Approach 2:
Instead of requiring physical printing to check appearance, the system creates digital simulated images that replicate what the printed output would look like under various conditions. This allows immediate visual feedback and iteration without the time-consuming print-check-reprint cycle
4Speed
If standard color conversion is used without viewing condition adjustment, then the processing speed is maintained, but the accuracy of color representation under specific viewing conditions deteriorates
Solution Approach 1:
The patent applies local quality adjustment by modifying color characteristics specifically for different viewing conditions rather than uniformly processing all images the same way. The color conversion unit applies condition-specific color profiles and the simulation unit applies viewing-condition-specific transformations, ensuring accurate color representation for each scenario while maintaining efficient processing through targeted rather than blanket adjustments
Data Source
AI summary
An information processing device includes: an image data input unit accepting an input of image data; a viewing condition setting acceptance unit accepting a setting of a first viewing condition and a second viewing condition; a color conversion unit converting the image data into first output image data adjusted to an appearance under the first viewing condition, based on a first profile including first spectral information corresponding to the first viewing condition, and converting the image data into second output image data adjusted to an appearance under the second viewing condition, based on a second profile including second spectral information corresponding to the second viewing condition; and a display information generation unit generating display information representing a display screen including the first output image and the second output image, based on the first output image data and the second output image data.