Color Expression Conversion for Document Text Accessibility
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Solution Overview
Problem
Current technologies for color perception conversion primarily focus on image and text hue conversion, but fail to address the challenge of expressing colors like 'red' or 'red color' in documents in a way that is easily recognizable for individuals with color perception difficulties.
Innovation Solution
A color expression conversion apparatus and method that includes a color expression conversion rule storage unit and a control unit to convert textual expressions of colors in document data into alternative expressions, ensuring that individuals with color perception challenges can read and understand color descriptions accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color information is extracted from image data and converted into color names, then color identification is improved, but the solution does not address textual color expressions in documents
Solution Approach 1:
The patent extends color conversion functionality from image data only to include both image data and document text data. The information processing apparatus now performs color name conversion in two distinct modes: extracting color information from image pixels and converting to color names, and detecting color expressions in document text and converting them to alternative color names. This multi-functional approach resolves the contradiction by making the system universally applicable to both image and text contexts.
Solution Approach 2:
The patent introduces a document text processing module that acts as an intermediary between the image processing module and the output display. This intermediary detects color expressions in text, converts them to color names using a color dictionary, and integrates them with image data for comprehensive color information presentation. This mediator enables the system to handle textual color expressions while maintaining compatibility with existing image processing capabilities.
2Loss of information
If color names are inserted on the information insertion layer, then color information is preserved, but individuals with color perception difficulties cannot understand color descriptions
Solution Approach 1:
The patent applies color conversion by transforming color names into alternative color names that are more distinguishable for individuals with color perception difficulties. The system detects original color expressions in text, converts them to standard color names, then further converts these to alternative color names with better perceptual distinction. For example, converting 'red' to 'brown' or 'green' to 'blue-green', ensuring that color information is preserved while enhancing readability for color perception impaired individuals.
Solution Approach 2:
The patent changes the parameter of color name representation from standard color names to alternative color names optimized for color perception impaired individuals. By modifying the color name parameter itself rather than the underlying color information, the system maintains accurate color representation while improving accessibility. The conversion process alters the linguistic parameter of color description to match the perceptual needs of the target audience.
3Measurement precision
If the system converts color information for image data, then color perception accuracy is improved, but textual color expressions remain unconverted
Solution Approach 1:
The patent implements a dual-processing architecture that handles both image data and document text data through the same color conversion engine. The system includes an image processing module for extracting and converting color information from images, and a document text processing module for detecting and converting color expressions in text. Both modules utilize the same color dictionary and conversion logic, ensuring consistent color perception accuracy across different data types and preventing loss of textual color expression information.
Solution Approach 2:
The patent performs preliminary detection and conversion of color expressions in document text before final output generation. The document text processing module proactively identifies color expressions, converts them to color names using the color dictionary, and prepares alternative color names in advance. This preliminary action ensures that textual color expression information is preserved and converted before the document is rendered or displayed, preventing any loss of color information.
Data Source
AI summary
A color expression conversion apparatus includes a color expression conversion rule storage unit that stores a rule for converting a textual expression of a specific color into another textual expression, and a color expression conversion control unit that converts a textual expression of a color included in document data into another textual expression in accordance with the rule.