Author:	Annalisa Cappello (annalisa.cap@katamail.com)
Advisor:	Prof. Sebastiano Battiato (battiato@dmi.unict.it)
History:	This plugin was implemented in July 2005
Works with:	8-bit grayscale images
ImageJ's version:	1.33u (used to develop this plugin)
Source:	LowpassFilters_.java
Installation:	Download LowpassFilters_.java to the plugins folder and compile it with the "Compile and Run" command. Restart ImageJ to add the "LowpassFilter" command to the Plugins menu.
Description:	This plugin implements three types of lowpass filters: ideal, Butterworth and Gaussian.
Usage:	Here is a brief description: 1) Select a filter (ideal, Butterworth or Gaussian); 2) Click on the OK button; 3) Insert the cutoff frequency; 4) Insert the order of filter (only for Butterworth filter); 5) Click on the OK button to apply the filter to the image.
Downloads:	Annalisa Cappello, Estensione software ImageJ con tecniche di enhancement nel dominio della frequenza
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