Windowed Histogram Equalization Performs excellently on suitable images, bringing out detail in areas where it was not previously discernible
Download

Windowed Histogram Equalization Ranking & Summary

Windowed Histogram Equalization Tags

filter VirtualDub VirtualDub Filter equalization Histogram Equalization Histogram Equalizer

Windowed Histogram Equalization Description

A global histogram equalization (as performed by the sister filter Histogram Equalization) is useful for many but not all images. Some images have well-distributed histograms when viewed globally, but they also have localized areas where the distribution of intensities is not even. The Windowed Histogram Equalization filter was designed to perform excellently on suitable images, bringing out detail in areas where it was not previously discernible. But not all images are suited for such treatment and the filter, like its sister, should not be used willy-nilly. The following configuration options are supported: Strength: This option determines the extent of equalization effect to be applied. As the slider is moved towards the weak end, the output image more-and-more approaches the input image. Maximum Intensity: This option sets the maximum intensity that can be generated and scales the overall image intensity accordingly. Use it to prevent possible washing out of bright areas. Window Size (X and Y): These options determine the size of the sliding window over which local areas are equalized. Note that the filter requires these values to be factors of the image dimensions. For example, if the image width is 128, then any X window size evenly dividing 128 will be suitable. If you do not use factors of the image dimensions, the filter will still work, but you will have strips of image that are not equalized. The X and Y window sizes may differ.

Windowed Histogram Equalization Related Software