Image Processing Apparatus for Flesh-Colored Area Detection
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Solution Overview
Problem
Existing image processing techniques for enhancing video resolution, such as super-resolution methods, often result in unnatural sharpness for certain image areas like human faces, while attempting to improve overall picture quality, leading to unevenness in image display.
Innovation Solution
An image processing apparatus with modules for detecting specific color or face areas within video signals, allowing for controlled super-resolution and sharpening processes to be moderated or disabled, ensuring natural image presentation by adjusting the sharpening level for these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If super-resolution technique is applied to enhance image resolution, then overall image sharpness is improved, but natural appearance of face images deteriorates
Solution Approach 1:
The patent applies different sharpening processing to different regions of the image. Face images are identified as specific color areas and are excluded from sharpening processing, while other areas receive full sharpening treatment. This local differentiation resolves the contradiction by maintaining natural appearance in faces while achieving sharpness in non-face regions.
Solution Approach 2:
The patent segments the image into face areas and non-face areas based on color detection. By detecting flesh-colored areas and classifying them as face regions, the system can apply different processing parameters to each segment, preventing unnatural sharpening of facial features while enhancing overall image quality.
2Manufacturing precision
If sharpening processing is applied uniformly to all image areas, then overall picture quality is improved, but unevenness in image display occurs
Solution Approach 1:
The patent implements local quality control by detecting specific color areas (faces) and applying different sharpening parameters to them compared to other regions. This ensures that face areas maintain their natural appearance while other areas receive appropriate sharpening, preventing unevenness in the overall image composition.
Solution Approach 2:
The patent changes the sharpening parameters dynamically based on the detected content type. When face areas are detected through color analysis, the system adjusts the sharpening strength and characteristics for those regions, while maintaining standard sharpening parameters for non-face regions, thus ensuring uniform and natural image display.
Data Source
AI summary
According to one embodiment, an image processing apparatus includes a detection module configured to detect a specific color area included in image data, an image processing control module configured to generate an image processing control signal for controlling an image process for the specific color area among image processes including a sharpening process for the image data, and an image processing module configured to subject the image data to the image process on the basis of the image processing control signal.