Color Conversion Definition Coupling Apparatus for Gamut Mapping
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Solution Overview
Problem
Existing color conversion methods face challenges in accurately coupling different color profiles, leading to inconsistencies and unnatural image representation when used across various input and output devices, due to the lack of a strict definition for coupling areas, resulting in potential inaccuracies in gamut mapping.
Innovation Solution
A color conversion definition coupling apparatus and program that determine whether the coupling areas for two color conversion definitions are identical or not, allowing for either sequential coupling or conversion using a specific algorithm to align the color reproduction areas, ensuring accurate gamut mapping and compatibility across different profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If color conversion definitions with different coupling areas are coupled sequentially without area verification, then coupling flexibility is improved, but color conversion accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by verifying whether coupling areas are identical before performing color conversion definition coupling. The coupling area verification unit checks if the coupling areas of first and second color conversion definitions match, and only allows sequential coupling when areas are identical. This preliminary verification prevents inaccurate coupling while maintaining flexibility for valid cases.
2Productivity
If color conversion definitions are coupled without verifying coupling area identity, then processing speed is improved, but color representation accuracy deteriorates
Solution Approach 1:
The patent performs preliminary verification of coupling area identity before executing the coupling operation. The coupling area verification unit quickly checks whether coupling areas match, enabling the system to proceed with fast sequential coupling when areas are identical, while preventing inaccurate coupling when areas differ, thus maintaining both speed and accuracy.
Solution Approach 2:
The patent introduces a coupling area verification unit as an intermediary between the color conversion definitions and the coupling process. This intermediary component verifies area identity and controls the coupling flow, ensuring that coupling operations are performed only when area compatibility is confirmed, thereby maintaining color representation accuracy.
3Measurement precision
If a strict definition of coupling area is implemented, then color conversion accuracy is improved, but system complexity increases
Solution Approach 1:
The patent introduces a coupling area verification unit as an intermediary component that implements the strict coupling area definition. This verification unit adds minimal complexity by simply comparing coupling area parameters, while significantly improving color conversion accuracy by preventing incompatible couplings.
Data Source
AI summary
A color conversion definition coupling apparatus has a definition coupling section for creating the coupling color conversion definition in the manner as set forth below. When it is decided that two coupling areas are identical, associations defined by the space conversion section for the first color conversion definition, the area conversion section for the first color conversion definition, the area conversion section for the second color conversion definition, and the space conversion section for the second color conversion definition are sequentially coupled. When it is decided that two the coupling areas are not identical, associations defined by the space conversion section for the first color conversion definition and the space conversion section for the second color conversion definition are coupled with one another in accordance with a conversion algorithm for converting coordinates from one to another of two the color reproduction areas.