Ground-Color-Aware Color Conversion for Print and Display Matching
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Solution Overview
Problem
Existing color matching techniques require manual adjustment of profiles for different types of print sheets, such as plain paper and recycled paper, which is time-consuming and inefficient.
Innovation Solution
A non-transitory computer-readable storage medium storing a color conversion program that sequentially uses input, print, and display profiles to accurately and quickly convert color spaces, considering the ground color of the print sheet, enabling precise color reproduction on both printed and displayed images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual profile rewriting is performed for each print sheet type, then color matching accuracy is improved, but time consumption and operational effort increase significantly
Solution Approach 1:
The system performs preliminary color measurement and profile generation for different print sheet types before actual printing. By pre-measuring the ground color characteristics of various paper types and pre-generating corresponding profiles, the system eliminates the need for manual profile rewriting during operation, thus maintaining color matching accuracy while significantly reducing time consumption.
Solution Approach 2:
The system automatically measures print sheet ground color characteristics and generates appropriate profiles without requiring manual intervention. The color measurement unit autonomously captures ground color data, and the control unit automatically processes this data to create or update profiles, enabling the system to serve itself rather than requiring operator involvement in profile creation.
2Measurement precision
If manual profile rewriting is performed for each print sheet type, then color matching accuracy is improved, but operational complexity and effort increase
Solution Approach 1:
The system automatically measures print sheet ground color characteristics and generates appropriate profiles without requiring manual intervention. The color measurement unit autonomously captures ground color data, and the control unit automatically processes this data to create or update profiles, enabling the system to serve itself rather than requiring operator involvement in profile creation.
Solution Approach 2:
The system creates color profiles by copying and adapting ground color measurement data from actual print sheets. Instead of requiring manual specification of color parameters, the system copies the actual ground color characteristics directly from measurements and uses this copied data to generate accurate profiles for that specific paper type.
3Device complexity
If traditional color conversion methods are used, then simplicity is maintained, but adaptability to different print sheet types deteriorates
Solution Approach 1:
The system changes the parameters of color conversion by dynamically selecting different profiles based on the measured ground color characteristics of each print sheet type. Rather than using a fixed conversion method, the system adjusts conversion parameters by selecting appropriate profiles that match the specific paper characteristics, thereby achieving high adaptability while maintaining operational simplicity through automatic parameter selection.
Solution Approach 2:
The system achieves multi-functionality by using a single color measurement and profile generation mechanism that works across different print sheet types. The same color measurement unit and control unit that measure ground color characteristics also automatically generate and select appropriate profiles, making the system universally applicable to various paper types without requiring separate manual configuration for each type.
Data Source
AI summary
A non-transitory computer-readable storage medium storing a color conversion program causing a computer to execute a method including a first conversion step of converting a color space of image data by sequentially using an input profile and a print profile, and a second conversion step of converting the color space of the image data after the conversion in the first conversion step by sequentially using the print profile and a display profile. The input profile has first color information and receives image data. The print profile has second color information and outputs image data as print data when printing the image data by a printing apparatus. The display profile has third color information and outputs the image data as display data in displaying the image data on a display unit.