Image Processing Apparatus Chromatic Achromatic Color Conversion
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Solution Overview
Problem
Color printers face challenges in maintaining image quality due to mechanically unstable elements causing color bleeding and gradation jumps when converting between chromatic and achromatic colors, as existing systems fail to simultaneously adjust color conversion data for both types effectively.
Innovation Solution
An image processing apparatus that determines whether an image signal is chromatic or achromatic and uses separate color conversion paths with attribute information to adjust and display color conversion data for both, ensuring synchronized adjustments to maintain consistent brightness and hue across different print conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate color conversion paths are used for chromatic and achromatic colors, then image quality is improved by preventing color bleeding, but device complexity increases due to multiple conversion tables and paths
Solution Approach 1:
The patent divides the color conversion system into separate conversion paths for chromatic and achromatic colors, each with its own conversion table. This segmentation allows optimized handling of each color type to prevent color bleeding while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The patent creates a unified color conversion apparatus that handles both chromatic and achromatic colors through a single integrated system. The color conversion tables and processing paths are designed to be universally applicable to different color types, eliminating the need for separate dedicated systems.
2Adaptability or versatility
If color conversion data is adjusted for user preferences, then adaptability is improved, but manufacturing precision deteriorates due to brightness differences between chromatic and achromatic conversions
Solution Approach 1:
The patent implements feedback mechanisms that monitor and compare brightness levels between chromatic and achromatic color conversions. When adjustments are made to color conversion data for user preferences, the system detects brightness differences and automatically compensates to maintain consistency across both color types.
Solution Approach 2:
The patent dynamically adjusts color conversion parameters based on the input color type. By changing conversion parameters selectively for chromatic versus achromatic inputs, the system maintains brightness consistency while still allowing user-preferred color adjustments where appropriate.
Data Source
AI summary
When one or both of color conversion data for chromatic colors and color conversion data for achromatic colors are rewritten, attribute information of the color conversion data for chromatic colors or the color conversion data for achromatic colors is updated and this attribute information is displayed on a display.