Adaptive Edge Pixel Adjustment for Image Sharpness
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Solution Overview
Problem
Existing image processing methods often result in unnatural image enhancements due to inappropriate overshoot or undershoot during edge enhancement, as they do not dynamically adjust pixel values based on the image conditions.
Innovation Solution
An electronic apparatus and image processing method that adaptively adjust edge pixels by determining their location within the image edge and input image, using enhanced threshold values and pixel ratios to generate adjusted pixel values, thereby avoiding improper enhancements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If edge enhancement is applied to improve image sharpness, then image sharpness is improved, but unnatural overshoot or undershoot occurs at edges
Solution Approach 1:
The patent applies different enhancement strategies to different regions within edges. Inside region pixels (closer to the middle of the edge) receive one type of enhancement while outside region pixels (closer to the original image boundary) receive another type. This local differentiation prevents uniform overshoot/undershoot across the entire edge, allowing sharpness improvement while maintaining natural appearance in different zones.
Solution Approach 2:
The patent dynamically adjusts enhancement parameters based on pixel position and image content. The system determines whether pixels are in inside or outside regions and applies adaptive enhancement ranges accordingly. This dynamic approach allows the enhancement strength and direction to vary locally, preventing fixed unnatural overshoot/undershoot while maintaining sharpness where needed.
2Manufacturing precision
If pixel values are enhanced to improve edge clarity, then edge clarity is improved, but image naturalness deteriorates
Solution Approach 1:
The patent enhances clarity locally by applying different processing to inside and outside region pixels. Inside region pixels get enhancement that maintains natural transitions, while outside region pixels get enhancement that preserves original boundaries. This localized approach achieves edge clarity without sacrificing overall image naturalness.
Solution Approach 2:
The patent changes enhancement parameters based on pixel location and edge characteristics. By adjusting enhancement ranges dynamically for different regions, the system achieves optimal edge clarity while maintaining natural appearance. The parameter adaptation prevents fixed unnatural enhancement artifacts.
Data Source
AI summary
The present disclosure provides an electronic apparatus and an image processing method for image edge enhancement, which adjust each edge pixel located in an image edge of an input image. More specifically, the electronic apparatus and the image processing method adaptively adjust a present pixel that is taken as the edge pixel according to the position of the present pixel in the image edge and the input image, thereby outputting an adjusted pixel value. Accordingly, the electronic apparatus and the image processing method can enhance the image edge according to the actual image condition.