Author: Wayne Rasband (wsr at nih.gov) History: 2005/08/21: First version
2005/08/22: 3 times faster
2010/03/11: Fixed a truncation error
Limitations: Does not work with 32-bit images. Selections on RGB images are ignored.
Source: Kuwahara_Filter.java Installation: Download Kuwahara_Filter.class to the plugins folder, or subfolder, and restart ImageJ. Description: The Kuwahara filter is a noise-reduction filter that preserves edges. It is described in the Non-Linear Filters section of the Image Processing Fundamentals online tutorial.