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NormalizeLocalBrightness_Mean
Header: | AVL.h |
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Namespace: | avl |
Normalizes local brightness of the image.
Syntax
C++
C#
void avl::NormalizeLocalBrightness_Mean ( const avl::Image& inImage, atl::Optional<const avl::Region&> inRoi, int inRadiusX, atl::Optional<int> inRadiusY, float inTargetMean, float inGammaValue, avl::Image& outImage )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
inImage | const Image& | Input image | |||
inRoi | Optional<const Region&> | NIL | Range of pixels to be processed | ||
inRadiusX | int | 0 - | 10 | Nearly half of the kernel's width (2*R+1) | |
inRadiusY | Optional<int> | 0 - | NIL | Nearly half of the kernel's height (2*R+1), or same as inRadiusX | |
inTargetMean | float | 128.0f | Target mean brightness | ||
inGammaValue | float | 0.01 - 8.0 | 1.0f | Gamma coefficient, where 1.0 is neutral | |
outImage | Image& | Output image |
Description
This filter normalizes every pixels brightness to inTargetMean based on a local average calculated using SmoothImage_Mean passing to it parameters inRadiusX and inRadiusY.
Gamma correction can be performed on the image before normalization through the inGammaValue parameter.
Examples
See Also
- NormalizeImage – Rescales an image linearly, so that its minimum becomes inNewMinimum and the maximum of the remaining pixels becomes inNewMaximum.
- NormalizeLocalContrast – Normalizes local contrast of the image using Wallis filter.
- NormalizeLocalBrightness_Gauss – Normalizes local brightness of the image.
- SmoothImage_Mean – Smooths an image by averaging pixels within a rectangular kernel.