ImageJ at LIONS
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We use the Open Source 
ImageJ software
for the SAXS
treatment of different images from our x-rays detectors. Actually somes plugins
are developed in the lab for opening images from MarResearch
MAR300, ImagePlate
Gel files, FastCom data file (gas detector).
ESRF Data File can also be opened.
Installation
Different plugins for radial averaging are under development.
- You need to download the version with Java of ImageJ.
- Here you can download the complete SAXS plugins. Unzip it and copy-paste into a SAXS directory inside the plugins directory of Image-J. Open Image-J and Saxs plugins should appeared in the menu Plugins.
- Different plugins for opening X-Ray detector images are developped. Unzip it into the Input-Output directory of Image-J. Some comes from ImageJ plugins web site.
- A toolbar is also available (derived from ActionBar). Unzip it into the plugins directory.
Tetradecanol exposed
1800s on the Mar300.
SAXS toolbar :
Plugins for defining beam center :
- graphically by clicking on the center,
- by finding the center of mass of direct beam,
- manually,
- and by tracing ellipses on images
Defining Region Of Interest :
For radial averaging, we have to define wich part of the image we want, and wich part of image should not be taken into acount.
Then we can simply defining masks by tracing on the image or by loading previously defined masks.
For defining masks, select a region and click on "add mask". The last mask is in fact the desired region. By clicking on "create masks", ImageJ will create and save the ROI.
Radial Averaging parameters :
When clicking on "Radial Average" the following dialog box opened. Defaults parameters comes from ImageJ parameters. They are memozired for the next session.
And the results after a few seconds (1.7s for a 32bit 2000x2000 pixels) :
Tetradecanol exposed 1800s on the Mar300. Treated with our PySaxs librairies.
