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Basic| Module: | FoundationBasic |
|---|
Normalizes local brightness of the image. Internally uses Mean smoothing.
Applications
Compensates uneven illumination.
| Name | Type | Range | Description | |
|---|---|---|---|---|
 |
inImage | Image | Input image | |
|
inRoi | Region* | Range of pixels to be processed | |
|
inRadiusX | Integer | 0 -  |
Nearly half of the kernel's width (2*R+1) |
|
inRadiusY | Integer* | 0 - |
Nearly half of the kernel's height (2*R+1), or same as inRadiusX |
|
inTargetMean | Real | Target mean brightness | |
|
inGammaValue | Real | 0.01 - 8.0 | 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
 Example image |
 Output of NormalizeLocalBrightness_Mean |
Complexity Level
This filter is available on Basic Complexity Level.
Filter Group
This filter is member of NormalizeLocalBrightness filter group.
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. Internally uses Gauss smoothing.
- SmoothImage_Mean – Smooths an image by averaging pixels within a rectangular kernel.
