Contrast Enhancer (Filter Rank)

Contrast Enhancer (Filter Rank)

Authors: Jean-Francois Leveque (software at artenum dot com)
G. Landini G.Landini@bham dot ac dot uk

History: 2001/06/19: (version 1.0.3)
2003/12/09: Renamed Filter_Rank and modified by G. Landini

Source: Filter_Rank.java

Installation: Download Filter_Rank.class to the plugins folder and restart ImageJ.

Description: This is a contrast-enhancing ImageJ plugin for 8 bit greyscale images. It creates a new contrast-enhanced image from the processed image. It asks for the geometric half length (halfLength) of the contrast-enhancing square. More information is available at http://www.artenum.com/en/produits/libre/ijce/ijce.html.
The contrast-enhancing algorithm was proposed by Didier Pelat (Paris Observatory http://www.obspm.fr/) and implemented by Artenum (http://www.artenum.com/).
Filter_Rank version 1.1.0 based on Contrast_Enhancer_ version 1.0.3
Modified by G. Landini G.Landini@bham.ac.uk on 23/Nov/2003:

Changed "half-length" for "filter window size" (more intuitive)
Added option to do (or rather "not to do") rank randomisation, so please be aware of this change in the algorithm
Added option for (not to) rescale to 8 bit range (to keep the real rank value)
Added option to overwrite the image data (no new image is created)
Added capability to filter stacks and to be recordable (for macro creation)
Moved dialog to setup()
Added "About..."

Pending issues / bugs: When a stack is processed and "Create new image" is checked, it creates individual images rather than a new stack. As a temporary measure do run("Convert Images to Stack"); to merge result into a stack.
Copyright (C) 2001 ARTENUM SARL.
This program is a free software; you can redistribute it and/or modify it under the terms of the GNU General Public license as published by the Free Software Foundation; either version 2 of license, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

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Authors:	Jean-Francois Leveque (software at artenum dot com) G. Landini G.Landini@bham dot ac dot uk
History:	2001/06/19: (version 1.0.3) 2003/12/09: Renamed Filter_Rank and modified by G. Landini
Source:	Filter_Rank.java
Installation:	Download Filter_Rank.class to the plugins folder and restart ImageJ.
Description:	This is a contrast-enhancing ImageJ plugin for 8 bit greyscale images. It creates a new contrast-enhanced image from the processed image. It asks for the geometric half length (halfLength) of the contrast-enhancing square. More information is available at http://www.artenum.com/en/produits/libre/ijce/ijce.html. The contrast-enhancing algorithm was proposed by Didier Pelat (Paris Observatory http://www.obspm.fr/) and implemented by Artenum (http://www.artenum.com/). Filter_Rank version 1.1.0 based on Contrast_Enhancer_ version 1.0.3 Modified by G. Landini G.Landini@bham.ac.uk on 23/Nov/2003: Changed "half-length" for "filter window size" (more intuitive) Added option to do (or rather "not to do") rank randomisation, so please be aware of this change in the algorithm Added option for (not to) rescale to 8 bit range (to keep the real rank value) Added option to overwrite the image data (no new image is created) Added capability to filter stacks and to be recordable (for macro creation) Moved dialog to setup() Added "About..." Pending issues / bugs: When a stack is processed and "Create new image" is checked, it creates individual images rather than a new stack. As a temporary measure do run("Convert Images to Stack"); to merge result into a stack. Copyright (C) 2001 ARTENUM SARL. This program is a free software; you can redistribute it and/or modify it under the terms of the GNU General Public license as published by the Free Software Foundation; either version 2 of license, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.