Special Color Patch Printing for Accurate Color Matching
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Solution Overview
Problem
Existing print control technologies face challenges in accurately reproducing special colors, especially when the area of the special color in RGB pixel data is small or has gradation, leading to errors in color matching and decreased accuracy.
Innovation Solution
An information processing device and method that stores special color data and prints a special color patch based on this data, allowing for accurate colorimetric value acquisition and alignment with the print image, improving color matching accuracy by printing the patch in accordance with the output of the print image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user visually selects the patch image by pointing the position of the special color in RGB pixel data, then the color matching accuracy is improved, but when the area of the special color is small or provided with gradation, it becomes difficult to accurately point the position, leading to deterioration of color matching accuracy
Solution Approach 1:
The patent creates a copy of the special color region by generating a patch image that isolates and extracts the special color area from the original RGB pixel data. This patch image serves as a simplified representation that is easier to measure and evaluate, allowing users to accurately identify and select the special color without the complexity of the full image
Solution Approach 2:
The patent segments the original image by creating a separate patch image that contains only the special color region. This segmentation isolates the area of interest from the rest of the image, making it easier to detect and measure the special color position and characteristics, particularly when the special color area is small or has gradation
2Ease of manufacture
If the special color patch is printed separately without aligning with the print image output, then the printing process is simplified, but the colorimetric accuracy deteriorates due to misalignment between the patch and the actual print image
Solution Approach 1:
The patent implements feedback by using the actual output of the print image to determine the printing position of the special color patch. The system measures or detects the position of special color pixels in the printed image and uses this information to adjust and align the patch image position, ensuring accurate colorimetric measurement
Solution Approach 2:
The patent performs preliminary analysis of the print image to identify and record the position of special color pixels before printing the patch image. This preliminary action allows the system to pre-calculate the optimal positioning of the patch relative to the print image, ensuring alignment without requiring complex real-time adjustments during printing
Data Source
AI summary
An information processing device configured to make a printing device execute printing includes a storage section configured to store special color data representing a special color included in a print target image, and a processing section configured to make the printing device print a special color patch as a color patch of the special color included in the print target image based on the special color data to obtain a colorimetric value of the special color patch. Based on the print target image and the special color data, the processing section makes the printing device execute printing of the special color patch in accordance with output of a print image based on the print target image.