Color Management Module Using HSV Intermediary Blending
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Solution Overview
Problem
Conventional digital video processing methods for color blending are memory extensive and unintuitive, failing to easily perform color mappings that alter specific colors while leaving others unchanged.
Innovation Solution
A system comprising a processing circuit and a conversion circuit that allows color blending in the HSV color space, enabling intuitive color management with programmable guard bands for smooth transitions and spatial blending, while supporting multiple color domains and formats like RGB and YCbCr.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional color blending methods are used, then color processing can be performed, but memory usage becomes extensive and the process becomes unintuitive for users
Solution Approach 1:
The patent introduces an intermediary color space conversion process that transforms colors from the original color space to an intermediate color space where blending operations are performed. This intermediary step allows for more intuitive color manipulation while reducing memory requirements compared to conventional direct blending methods in the original color space.
2Adaptability or versatility
If conventional color blending is used, then color processing is possible, but it cannot easily perform color mappings that alter certain colors while leaving other colors unchanged
Solution Approach 1:
The patent implements local quality by enabling different color mapping operations to be applied to different color regions selectively. The system can identify specific color ranges and apply custom mapping functions only to those regions while preserving other colors, providing both selectivity and ease of operation through programmable color domain definitions.
3Reliability
If color blending is performed without guard bands, then processing is simpler, but color transitions become abrupt and unnatural
Solution Approach 1:
The patent applies preliminary action by pre-defining guard band regions around color domain boundaries before the actual color mapping operation. These guard bands are programmed in advance and automatically applied during color blending to ensure smooth transitions, reducing the need for complex real-time adjustments while maintaining high reliability of color transition smoothness.
Data Source
AI summary
An apparatus comprising a first circuit, a processing circuit and a conversion circuit. The first circuit may be configured to generate a first intermediate signal in a second format in response to an input signal in a first format. The processing circuit may be configured to generate a second intermediate signal and a third intermediate signal in response to the first intermediate signal. The conversion circuit may be configured to generate an output signal in the first format in response to the second intermediate signal and the third intermediate signal. The processing circuit may be configured to implement color blending on the second intermediate signal in the second format prior to conversion to the first format and pass the third intermediate signal without color blending.


