Image Processing Apparatus Achromatic Color Shift Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Non-uniform display panels experience color shifts, particularly with achromatic colors, due to the varying characteristics of subpixels emitting different colors, which existing technologies fail to adequately address.
Innovation Solution
An image processing apparatus and method that analyze pixel data using the HSV color space to determine if it is achromatic, and if so, apply different rendering weights to subpixels to reduce color shifts, distinguishing between first and second renderings based on these characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If non-uniform display panels are used to reduce manufacturing costs or simplify structure, then manufacturing complexity is reduced, but color uniformity deteriorates causing color shifts in achromatic colors
Solution Approach 1:
The patent applies different rendering weight sets specifically to achromatic pixel data based on subpixel characteristics. By analyzing whether pixel data is achromatic and applying localized compensation weights to R, G, and B subpixels, the system addresses color uniformity issues only where needed (in achromatic regions) without affecting colored regions, thus resolving the contradiction between simplified panel structure and color uniformity.
2Ease of operation
If uniform rendering weights are applied to all subpixels, then processing simplicity is maintained, but color accuracy deteriorates for achromatic colors in non-uniform panels
Solution Approach 1:
The patent dynamically adjusts rendering weights based on the characteristics of the pixel data being processed. The system determines whether pixel data is achromatic and selectively applies different weight sets (first weight set for non-achromatic, second weight set for achromatic), making the rendering process adaptive rather than static. This resolves the contradiction by maintaining simplicity for colored pixels while improving accuracy for achromatic pixels.
Solution Approach 2:
The patent changes the rendering weight parameters based on the color characteristics of the input pixel data. By calculating color characteristics and determining achromatic status, the system modifies the weight parameters applied to subpixels, transitioning from fixed uniform weights to variable weights that optimize color accuracy for achromatic colors while maintaining compatibility with colored colors.
3Productivity
If achromatic pixel data is processed with standard rendering, then processing speed is maintained, but color shift occurs in displayed achromatic colors
Solution Approach 1:
The patent performs preliminary analysis of pixel data to determine whether it is achromatic before applying rendering weights. By calculating color characteristics in advance and classifying pixel data, the system prepares the appropriate weight set beforehand, enabling fast selective application without requiring complex real-time adjustments during rendering. This resolves the contradiction by maintaining processing speed through pre-classification while achieving color accuracy through targeted weight application.
Data Source
AI summary
An image processing apparatus includes: an analyzer configured to calculate color characteristics by input pixel data, and determine whether the pixel data is achromatic based on the color characteristics; a first renderer configured to perform a first rendering on the pixel data in response to determining that the pixel data is not achromatic; and a second renderer configured to perform a second rendering on the pixel data in response to determining that the pixel data is achromatic.