Color Conversion Profiles for Accurate Print Sheet Matching
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Solution Overview
Problem
Existing color matching techniques in printing systems 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 color conversion apparatus and method that automatically adjusts color profiles based on the selected print sheet type, using input and printer profiles to accurately simulate the final printed color, including consideration of the print sheet's ground color, through sequential color space conversions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual profile adjustment 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 automatic profile adjustment without requiring manual intervention. The color conversion apparatus automatically selects appropriate profiles based on print sheet type and performs color space conversion, eliminating the need for operators to manually adjust profiles for each paper type while maintaining accurate color matching
Solution Approach 2:
Color conversion profiles are pre-configured for different print sheet types (plain paper, recycled paper, high-quality paper). The system has these profiles ready in advance and automatically selects the appropriate profile based on the selected print sheet type, eliminating the need for real-time manual adjustment
2Manufacturing precision
If manual profile rewriting is performed for each print sheet change, then color reproduction accuracy is improved, but productivity decreases
Solution Approach 1:
The system dynamically selects color conversion profiles based on the selected print sheet type. When the user changes the print sheet type selection, the system automatically switches to the appropriate pre-configured profile, enabling adaptive color conversion without manual intervention and maintaining high operational efficiency
Solution Approach 2:
The system changes the color conversion parameters automatically based on print sheet type. Different profiles with optimized color conversion parameters are prepared for different paper types, and the system selects the appropriate parameter set based on the selected print sheet type, achieving accurate color reproduction without manual parameter adjustment
3Measurement precision
If visual designation of colors is performed one by one, then color matching precision is improved, but device complexity and operational complexity increase
Solution Approach 1:
The system uses pre-configured color conversion profiles that capture the color characteristics of different print sheet types. Instead of manually designating colors, the system copies and applies the appropriate pre-established profile for the selected print sheet type, simplifying the operation while maintaining color matching precision
Data Source
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AI summary
To provide a mechanism capable of accurately and quickly performing color space conversion. A computer program product including a color conversion program causing a computer (101) to execute a method including a first conversion step (600) of converting a color space of image data by using an input profile (603) and a print profile (604), and a second conversion step (601) of converting the color space of the image data after the conversion by using the print profile and a display profile (607). 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 by a printing apparatus (200). The display profile has third color information and outputs the image data as display data in displaying on a display unit (106).