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EqualizeImageHistogram
Maps image pixels to new values to achieve uniform distribution of intensities in the range (0, 255).
| Name | Type | Description | |
|---|---|---|---|
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inImage | Image | Input image |
|
inRoi | Region* | Range of pixels to be processed |
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outImage | Image | Output image |
Only the following inImage pixel formats are supported: 1xuint8
Description
The filter applies non-linear mapping to image pixel values so that pixel intensities of the resulting image are evenly distributed in range from 0 to 255.
The operation computes the cumulative histogram \(C\) of inImage and the image size \(N\). Then the result is computed as follows:
\[ \begin{aligned} outImage[i,j] &= C[ inImage[i,j] ] \times \frac{255}{N} \end{aligned} \]Examples
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EqualizeImageHistogram run on example image.
Complexity Level
This filter is available on Basic Complexity Level.
