Color Chart Shape Simulation for Complex Mark Matching
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Solution Overview
Problem
Existing color matching technologies face challenges in achieving consistency when adjusting complex shapes, such as logos or Chinese characters, due to the area effect and Von Bezold effect, leading to inefficient color adjustment processes.
Innovation Solution
A method that involves simulating the shape of a target mark in a color chart with corresponding color patches, allowing for the selection of a color patch close to the designated color, and adjusting the color values based on the shape and background information of the target mark.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If constant shape color patches are used in color charts, then the color matching process is simplified, but the visual effect varies due to the shape of target marks causing area effect and Von Bezold effect
Solution Approach 1:
The patent applies local quality by making the color patches have the same shape as the target mark being evaluated. This means each color patch is locally adapted to match the specific shape characteristics (logo, Chinese character, etc.) of the target, rather than using a universal constant shape. This resolves the contradiction by ensuring the visual effect matches the target shape while maintaining systematic color comparison capability.
Solution Approach 2:
The patent changes the shape parameter of color patches from constant to variable, specifically matching the target mark shape. This parameter change eliminates the area effect and Von Bezold effect that occur with mismatched shapes, while still allowing for systematic color evaluation. The shape parameter is adjusted to align with the target mark, resolving the visual effect inconsistency.
2Manufacturing precision
If trial and error method is used for color matching with complex shapes, then color accuracy can be achieved, but the process requires large number of steps and man-hours
Solution Approach 1:
The patent applies preliminary action by pre-generating color charts with color patches that have the same shape as the target mark. This preparation is done before the actual color matching task, so when color evaluation is needed, the operator can directly compare the target mark with pre-prepared same-shaped color patches, eliminating the need for trial and error and significantly reducing time and manual effort.
Solution Approach 2:
The patent uses copying by creating color patches that are exact shape copies of the target mark. Instead of using constant geometric shapes that require trial and error matching, the system copies the target mark's shape into the color patches, allowing direct visual comparison and immediate color evaluation, thus大幅提高 productivity while maintaining accuracy.
3Manufacturing precision
If color patches with different shapes are used to match target marks, then visual effect consistency is improved, but the complexity of color chart increases
Solution Approach 1:
The patent applies universality by creating a color chart generation system that can adapt to any target mark shape. Rather than creating different color charts for different shapes, the system has the capability to generate color charts with any shape as needed, making the system universally applicable to logos, Chinese characters, and other complex shapes while maintaining consistent structure and process.
Data Source
AI summary
The shape of a target mark extracted from within a print sample and to be reproduced on a print is entered. A color chart is printed comprising multiple color patches in which the shape of the target mark is simulated.