Lighting Control via Illumination Data for Color Consistency
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Solution Overview
Problem
Existing methods for ensuring consistent color appearance of printed materials across different illumination conditions are cumbersome, requiring extensive data capacity and manual measurement of light sources, which can be labor-intensive and impractical, especially in the context of the Internet of Things (IoT) where devices need to adapt to various lighting environments.
Innovation Solution
An information processing system that includes an information apparatus and a lighting apparatus, where the information apparatus reads images, acquires illumination information, and generates adjustment data to be transmitted to the lighting apparatus, allowing it to control light emission based on the acquired data, thereby ensuring consistent color appearance across different lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If color profiles corresponding to all light sources are previously created and loaded in a printer, then color accuracy under various lighting conditions is improved, but data capacity requirements and device complexity increase
Solution Approach 1:
The system performs preliminary measurement of the observation light source using a dedicated measuring instrument to obtain spectroscopic data, then creates and applies a color profile specifically for that light source. This preliminary action avoids the need to pre-load all possible color profiles while ensuring accurate color reproduction for the actual viewing conditions.
Solution Approach 2:
The system changes the color profile parameters dynamically based on the measured characteristics of the observation light source. Instead of using fixed pre-loaded profiles, the system adjusts color conversion parameters according to the actual light source's spectral properties, thereby reducing data storage requirements while maintaining color accuracy.
2Manufacturing precision
If a dedicated measuring instrument is used to measure an observation light source, then color profile creation accuracy is improved, but operational complexity and user burden increase
Solution Approach 1:
The system enables the working person to directly create a color profile by measuring the observation light source themselves using the dedicated measuring instrument. The system provides automated processing of the measured data to generate the color profile, reducing the burden of manual calculations while maintaining measurement accuracy. This self-service approach eliminates the need for specialized operators while preserving color profile accuracy.
3Adaptability or versatility
If multiple color profiles are stored for different light sources, then adaptability to various viewing conditions is improved, but device complexity and data requirements increase
Solution Approach 1:
The system introduces a light source measuring instrument as an intermediary to characterize the observation light source objectively. This intermediary device enables the system to adapt to any light source by measuring its properties and generating an appropriate color profile, rather than requiring pre-programmed knowledge of every possible light source. This approach maintains high adaptability while reducing system complexity.
Data Source
AI summary
An information processing system includes an information apparatus configured to process information and a lighting apparatus configured to emit light. The information apparatus includes a reading unit, a first acquisition unit, a second acquisition unit, and a generation unit. The reading unit is configured to read an image including predetermined information. The first acquisition unit is configured to acquire first illumination information from the predetermined information read by the reading unit. The second acquisition unit is configured to acquire second illumination information, which indicates capability information about the lighting apparatus. The generation unit is configured to generate third illumination information, which is to be transmitted to the lighting apparatus, based on the first illumination information and the second illumination information. The lighting apparatus controls emitting the light based on the third illumination information.