Image Display Method Gamma Curve Color Adjustment
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Solution Overview
Problem
Existing color adjustment methods in image processing result in unsmooth transitions and image distortion due to rapid changes in the saturation parameter, leading to the occurrence of color spots.
Innovation Solution
Transforming RGB parameters using a first gamma curve followed by an inverse second gamma curve to obtain a second RGB parameter, which allows for smooth color adjustment by maintaining the exponential relationship between the parameters, thereby avoiding image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If weighted processing is performed on the saturation parameter to enhance or weaken color, then color adjustment effect is improved, but rapid changes in saturation parameter cause unsmooth transition and image distortion
Solution Approach 1:
The patent applies parameter changes by transforming RGB parameters through gamma curves to modify the saturation parameter's behavior. By using a first gamma curve for color enhancement and a second gamma curve for color weakening, the system changes the mathematical parameters governing saturation transformation, enabling smooth transitions while maintaining precise color control without abrupt changes that cause distortion
Solution Approach 2:
The patent utilizes curvature by applying gamma curves (which are curved mathematical functions) to transform the saturation parameter. The first gamma curve and second gamma curve provide smooth, continuous transformations rather than linear changes, ensuring that color adjustments transition smoothly without creating abrupt edges or distortions in the image
2Manufacturing precision
If weighted processing is performed on the saturation parameter, then color enhancement or weakening is achieved, but the rapid change in saturation parameter leads to color spots and image distortion
Solution Approach 1:
The system changes the mathematical parameters by applying different gamma curves based on the adjustment type. For color enhancement, a first gamma curve is used; for color weakening, a second gamma curve is used. This parameter change ensures that the saturation parameter transitions smoothly without creating harmful effects like color spots or image distortion, while still achieving precise color adjustment
Data Source
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AI summary
The present invention provides an image display method and a device. The method includes: obtaining, according to a first RGB parameter of a pixel of an image and a first gamma value corresponding to the first RGB parameter, a second RGB parameter corresponding to a second gamma value, where a second transmittance of the second RGB parameter is equal to a first transmittance of the first RGB parameter; obtaining an H parameter and a V parameter according to the first RGB parameter, and obtaining an S parameter according to the second RGB parameter; obtaining a third RGB parameter according to the H parameter, the S parameter, and the V parameter; and displaying the pixel according to the third RGB parameter. According to the present invention, a first RGB parameter is transformed into a second RGB parameter by using a gamma curve (that is, a first gamma value) corresponding to the first RGB parameter and another gamma curve (that is, a second gamma value). As the RGB parameter is transformed by using an exponential relationship, smooth transition in color adjustment can be ensured, and no color spot appears, thereby avoiding an image distortion.