Image Processing Edge and Thin Line Correction
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Solution Overview
Problem
Existing image processing technologies face challenges in achieving smooth edges when both edge smoothing and thin line thickening functions are applied to the same image, often resulting in abrupt changes in pixel density and unnatural image representations.
Innovation Solution
An image processing apparatus and method that includes a first correction unit for edge detection and correction, a second correction unit for thin line detection and correction, and an output unit that sets pixel values to the greater of the two correction results, ensuring a smooth edge representation by prioritizing the higher correction value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If priority is given to edge smoothing function, then edge jaggies are reduced, but abrupt changes in density are created between adjacent pixels
Solution Approach 1:
The patent changes the selection parameter from fixed priority (conventional) to dynamic comparison of correction values. The output unit selects the larger correction value between edge smoothing and thin line thickening based on actual pixel values, not predetermined priority, thereby adapting to local image characteristics and preventing abrupt density changes
Solution Approach 2:
The patent introduces dynamic selection mechanism where the choice between edge smoothing and thin line thickening results changes based on the specific pixel context and correction magnitudes. This dynamic approach allows the system to adapt to different situations rather than following a static priority rule
2Reliability
If both edge smoothing and thin line thickening functions are applied, then comprehensive correction is achieved, but conflicting correction results occur on the same pixel
Solution Approach 1:
The patent resolves the conflict by changing from priority-based selection to value-based selection. The output unit compares the actual correction values produced by both functions and selects the larger one, transforming the decision criterion from hierarchical to quantitative
Solution Approach 2:
The output unit acts as an intermediary that reconciles the conflicting results from edge smoothing and thin line thickening functions. Instead of allowing one function to override the other based on priority, it mediates by selecting the result that produces the larger correction value
Data Source
AI summary
An image processing unit detects an edge portion of an input image and outputs first data for correcting the detected edge portion. The image processing unit also detects a thin line in the input image and outputs second data for correcting the detected thin line. In a case where a pixel of interest is subjected to both correction processes using the first data and the second data, a greater correction amount is selected and the correction is made using the selected correction amount, and a result corrected image is output as an output image.