Dynamic Color Calibration for Remote Work Illumination
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Solution Overview
Problem
The spread of remote work has created a demand for digital color calibration techniques that can support color reproducibility under varying illumination conditions, particularly where the color temperature of the observation site differs from the standard illumination used in the printing industry.
Innovation Solution
An image processing system that acquires color information from the observation site and paper, switches calculation methods based on this information, and calculates target values in a color space to ensure accurate color reproduction, using correction formulas adjusted for different color temperatures to match the appearance of colors under standard illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single calculation method is used for color space conversion, then the process is simple, but color reproducibility deteriorates under non-standard illumination conditions
Solution Approach 1:
The patent applies parameter changes by switching between different calculation methods based on the color temperature parameter of the illumination. When the illumination color temperature is within the standard range (2000K-10000K), a first calculation method is used; when it falls outside this range, a second calculation method is used. This dynamic parameter-based selection resolves the contradiction by adapting the calculation complexity to the specific illumination conditions, ensuring color reproducibility without unnecessarily increasing system complexity.
Solution Approach 2:
The patent implements dynamics by making the calculation method selectable and switchable based on illumination conditions. The system dynamically determines which calculation method to use by evaluating the color temperature of the current illumination against the standard range, allowing the system to adapt its processing approach in real-time. This dynamic adaptation ensures accurate color reproduction across varying conditions while maintaining operational simplicity through automated method selection.
2Adaptability or versatility
If digital color calibration is performed under varying illumination conditions, then remote work becomes possible, but color accuracy deteriorates
Solution Approach 1:
The patent uses parameter changes by detecting the color temperature of the illumination environment and adjusting the calculation method accordingly. This allows the system to maintain color accuracy in diverse illumination conditions encountered during remote work, whether the lighting is warmer or cooler than standard conditions. The parameter-based adaptation enables remote color calibration to achieve precision comparable to standard laboratory conditions.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a color temperature detection and evaluation system that mediates between the variable illumination conditions and the color calibration process. This intermediary detects the illumination characteristics and determines the appropriate calculation method, acting as a bridge that ensures color accuracy is maintained regardless of the remote work environment's lighting conditions.
3Manufacturing precision
If color calibration is performed without considering illumination color temperature, then the process is simple, but color shade reproducibility deteriorates
Solution Approach 1:
The patent applies parameter changes by incorporating color temperature as a key parameter in the color calibration process. The system measures or obtains the illumination color temperature and uses this parameter to select the appropriate calculation method. This parameter-driven approach ensures accurate color shade reproduction by adapting the calibration calculations to the specific lighting conditions, while the automated parameter-based method selection keeps the process complexity manageable.
Solution Approach 2:
The patent implements preliminary action by determining and evaluating the illumination color temperature before performing the color calibration calculations. This preliminary assessment of the lighting conditions allows the system to pre-select the appropriate calculation method, ensuring that the subsequent color shade reproduction is optimized for the specific illumination environment. This advance preparation prevents color accuracy issues without adding significant complexity to the overall process.
Data Source
AI summary
An image processing system includes: one or plural processors configured to: acquire first color information from an illumination at an observation site; acquire second color information on paper used for printing; switch a calculation method to be used for calculating a target value in a color space of a specific color observed under the illumination, according to the first color information; and calculate the target value in the color space of the specific color, based on the switched calculation method and the second color information.