Camera-Specific Color Conversion Model Accuracy
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Solution Overview
Problem
Users face challenges in achieving accurate color conversion in image processing due to varying illumination conditions and device properties, leading to reduced accuracy in color adjustment models, making it difficult to create highly accurate color conversion models.
Innovation Solution
An image processing device that accepts image information pairs before and after color conversion, evaluates the accuracy of color conversion properties, and displays the results on a display device, allowing users to input new image information pairs for color conversion based on a created color conversion model, which includes a color conversion property creation unit and a display control unit to manage the display of converted images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color conversion is performed based on general adjustment methods, then color adjustment can be applied to photographed images, but the accuracy of color conversion is reduced due to varying illumination conditions and device properties
Solution Approach 1:
The patent changes the parameters used for color conversion from general adjustment parameters to camera-specific parameters. By obtaining actual photographed images from multiple cameras and extracting color information from specific regions (sky, sea, land), the system creates camera-adapted color conversion tables that account for variations in illumination conditions and device properties, thereby improving color conversion accuracy while maintaining adaptability.
Solution Approach 2:
The patent performs preliminary color conversion table creation for each camera type before actual image processing. By pre-obtaining photographed images from multiple cameras under various conditions and pre-calculating the color conversion tables, the system prepares accurate conversion parameters in advance, which are then applied during actual image processing to ensure high accuracy without requiring real-time adaptation.
2Measurement precision
If camera-specific color conversion tables are created using photographed images, then color conversion accuracy is improved, but the complexity of the color conversion property creation process increases
Solution Approach 1:
The patent segments the color conversion process into distinct stages: obtaining photographed images from multiple cameras, extracting color information from specific regions (sky, sea, land), calculating color conversion tables for each camera, and storing these camera-specific tables. This segmentation simplifies the overall complex process by breaking it into manageable, automated steps that can be executed systematically.
Solution Approach 2:
The patent creates copies of color conversion tables tailored to each specific camera type. Instead of using a single general conversion table, the system generates and stores multiple camera-specific conversion tables that are copies adapted to individual camera characteristics. This copying approach simplifies the processing of diverse camera data by standardizing the conversion method while maintaining camera-specific accuracy.
3Ease of manufacture
If general color adjustment methods are used, then the processing process remains simple, but the accuracy of color conversion is reduced
Solution Approach 1:
The patent implements a self-service system where the color conversion tables are automatically generated and stored for each camera type without requiring manual intervention. The system automatically obtains photographed images, extracts color information, calculates conversion tables, and stores them in the storage unit. This automation maintains processing simplicity while achieving high accuracy through camera-specific adaptation.
Data Source
AI summary
An image processing device includes: an acceptance unit that accepts an image information pair composed of image information before color conversion and image information after color conversion; an accuracy output unit that outputs accuracy of a color conversion property from the plural accepted image information pairs; a color conversion property creation unit that creates the color conversion property from the plural accepted image information pairs; and a display control unit that, when the acceptance unit accepts a new image information pair, controls to display, on a display device, at least image information created by color conversion of image information of the new image information pair before color conversion based on the color conversion property created by the color conversion property creation unit from the image information pair that has already been accepted by the acceptance unit and image information of the new image information pair after color conversion.