Display Control for Color Matching With Color-Coded Difference Images
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Solution Overview
Problem
Existing image pickup systems struggle with residual color differences between multiple image pickup apparatuses, making it difficult for users to visually identify and correct color mismatches despite using correction lookup tables.
Innovation Solution
A display control apparatus that generates a correction lookup table and residual color difference information to facilitate easy discrimination of color differences between reference and adjustment image pickup apparatuses, using a processor to execute instructions for color matching and display information generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a correction lookup table is used for color matching between image pickup apparatuses, then color consistency is improved, but residual color difference becomes difficult to detect visually
Solution Approach 1:
The patent applies color changes by converting residual color difference data into a difference image where pixels are assigned specific colors (e.g., red, green, blue, yellow, cyan, magenta, white, or black) based on the magnitude and direction of color differences. This allows users to visually detect residual color differences that would otherwise be imperceptible in the corrected images.
Solution Approach 2:
The patent introduces a difference image as an intermediary representation between the original images and the corrected images. This difference image serves as a mediator that highlights residual color differences through color-coded pixels, making them visible without altering the original or corrected images themselves.
2Productivity
If multiple image pickup apparatuses are used to capture images, then productivity is improved, but color difference between apparatuses increases
Solution Approach 1:
The patent implements feedback by generating a difference image that provides visual information about residual color differences between multiple image pickup apparatuses. This feedback mechanism allows users to identify and correct color inconsistencies, enabling continuous improvement of color matching across multiple devices while maintaining high productivity.
Solution Approach 2:
The patent applies parameter changes by adjusting the color space representation and converting color difference data into visual parameters (colors and intensities) in the difference image. This transformation enables users to perceive and correct color parameter discrepancies between multiple apparatuses efficiently.
3Measurement precision
If visual comparison of pickup images is performed to detect residual color difference, then detection accuracy is improved, but time consumption increases
Solution Approach 1:
The patent extracts residual color difference information from the complex visual comparison task and isolates it in a dedicated difference image. By extracting only the relevant color difference data and representing it through color-coded pixels, the system maintains high detection accuracy while dramatically reducing the time required compared to manual visual comparison of entire images.
Data Source
AI summary
A display control apparatus that easily discriminates residual color difference between a plurality of image pickup apparatuses at a site where the image pickup apparatuses are used. The display control apparatus including a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to obtain an adjustment image from an adjustment image pickup apparatus that performs predetermined color matching with a reference image pickup apparatus, generate residual color difference information showing color difference from a reference image picked up by the reference image pickup apparatus that remains in the adjustment image, and generate display information from the residual color difference information.