Author:	Rosa Leonardi (angirosa@tiscali.it)
Advisor:	Prof. Sebastiano Battiato (battiato@dmi.unict.it)
History:	This plugin was implemented in October 2006
Works with:	8-bit grayscale images
ImageJ's version:	1.33u (used to develop this plugin)
Source:	Notch_Filters.java
Installation:	Download Notch_Filters.java to the plugins folder and compile it with the "Compile and Run" command. Restart ImageJ to add the "Notch Filters" command to the Plugins menu.
Description:	"This plugin implements Notch Filters. It is based on Joachim Walter's FFT Filter plugin at http://rsb.info.nih.gov/ij/plugins/fft.html.
Usage:	Here is a brief description: 1) Choose a standard filter using the combo box; 2) Click on the button "Show FFT of the image" in order to visualize the FFT of the image to transform; 3) Click on the button "Show filter" in order to visualize the filter to apply to the image; 4) Insert the frequency of cut, the order of the filter to apply and the coordinates of the centers; 5) Click on the button "Preview" to view as the image would be if it was processed according to the chosen filter; 6) Click on the button "Apply" to definitively apply the current filtering to the image.
Downloads:	Rosa Leonardi, Tecniche di Image Restoration spaziali e nel dominio della frequenza
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