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Kuwahara Filter

The Kuwahara filter is an edge-preserving filter that softens the current image but attempts to preserve edges. Similar to the mean filter the Kuwahara filter replaces the current pixel with the mean of a neighboring 3x3 block that has the least variance.

Example

Source ImageKuwahara

See Also

Mean

For More Information

Image Processing Fundamentals - Smoothing Operations
NEC Incubation Center - IMAP VISION - Kuwahara Filter
Image Processing with gluas

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