Dynamic Color Gamut Conversion for Display-Print Matching
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Solution Overview
Problem
The existing image processing technologies fail to ensure that colors of printed images match those displayed on terminal devices, causing a sense of incongruity due to differences in color gamuts between printing and display devices.
Innovation Solution
An image processing apparatus and method that determines whether an input image is a standard or non-standard color gamut image and performs color conversion based on the terminal device's color gamut information, ensuring the printed image matches the displayed image on the terminal device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image is color-converted using a standard color gamut assumption, then the printed image has standard colors that are universally acceptable, but the colors differ from the displayed image on terminal devices with non-standard color gamuts
Solution Approach 1:
The color conversion process is made dynamic by detecting the actual color gamut of the terminal device and adjusting the color conversion parameters accordingly. Instead of using a fixed standard color gamut assumption, the system adapts to the specific display characteristics of each terminal device, ensuring accurate color reproduction while maintaining versatility across different devices.
Solution Approach 2:
The system changes the color conversion parameters based on the detected color gamut characteristics of the terminal device. By modifying parameters such as color space transformation matrices and gamma values to match the actual display device properties, the system achieves precise color conversion that accounts for variations in terminal device color gamuts.
2Productivity
If the color conversion is performed without considering terminal device color gamut information, then the processing is simple and fast, but colors of printed images and displayed images differ causing incongruity
Solution Approach 1:
The system performs preliminary detection of terminal device color gamut information before the color conversion process. By acquiring and storing color gamut characteristics of terminal devices in advance, the system can quickly retrieve and apply the appropriate conversion parameters without adding significant processing time, thus maintaining high productivity while ensuring color consistency.
Solution Approach 2:
The system incorporates feedback mechanisms where terminal device color gamut information is detected and fed back into the color conversion process. This feedback loop allows the system to adjust conversion parameters based on actual device characteristics, ensuring reliable color consistency between displayed and printed images while maintaining efficient processing through automated detection and adjustment.
Data Source
AI summary
In the image processing apparatus, a color gamut information storage unit stores terminal information, color gamut determination information and color gamut information in association with one another; an input image determination unit determines whether the input image is a standard color gamut image or a non-standard color gamut image based on the color gamut determination information acquired based on the terminal information; and a first color conversion unit converts the input image as determined to be the non-standard color gamut image into an output image suitable for a color gamut of a printing apparatus based on the color gamut information acquired based on the terminal information so that the input image printed by the printing apparatus may be equal in color to the input image displayed on the display unit of the terminal device.