Image Processing Device for Deformed Object Color Correction
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Solution Overview
Problem
Existing image processing devices for deformed objects do not effectively consider color variation due to deformation during molding, requiring complex processing to compute and record distortion and density variations as separate functions.
Innovation Solution
An image processing device and method that stores correlations between pre- and post-deformation colors, using degree-of-deformation information and color information to determine the image color, thereby precisely reflecting color variation effects, with a lookup table approach for efficient processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex processing is used to compute distortion and density variation as separate mapping functions, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent combines the distortion mapping function and density variation function into a single integrated color determination process. Instead of computing and recording separate mapping functions for distortion and density variations, the invention integrates both corrections into one unified approach that determines the pre-deformation color directly from post-deformation color and degree of deformation, thereby reducing processing complexity while maintaining color accuracy.
Solution Approach 2:
The patent creates and stores a correlation table in advance that maps the relationship between pre-deformation color, post-deformation color, and degree of deformation. This preliminary preparation allows the system to quickly determine the appropriate pre-deformation color during actual printing operations without performing complex real-time computations, thus reducing device complexity while preserving manufacturing precision.
2Manufacturing precision
If separate mapping functions for distortion and density variation are computed, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The correlation table is created and stored in advance, containing the relationships between pre-deformation color, post-deformation color, and degree of deformation for various scenarios. During actual printing operations, the system simply looks up the appropriate values from this pre-computed table based on the measured degree of deformation, eliminating the need for time-consuming real-time computations of separate mapping functions while maintaining color accuracy.
3Manufacturing precision
If color variation due to deformation is precisely reflected, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent introduces a degree of deformation parameter that quantifies the deformation state of the medium. By using this parameter to index into the pre-stored correlation table, the system can precisely reflect color variation due to deformation through a simple lookup operation rather than complex real-time computations, thereby maintaining manufacturing precision while reducing device complexity.
Data Source
AI summary
An image processing device includes: a storage part configured to store a correlation between a pre-deformation color and a post-deformation color that reflects a color variation accompanying a deformation of a medium, with respect to a degree of deformation of the medium; an acquisition part configured to acquire degree-of-deformation information and color information for each region of a deformed object; and a determination part configured to determine a color of the image based on the degree-of-deformation information, the color information, and the correlation, so that the post-deformation color of each region of the deformed object approximates the color information.