Digitizing data from old figures with ImageJ

 

Following on this earlier post concerning the retrieval of data from figures in published papers with R, here is a method for doing the same with ImageJ. This is a freely available program that should run on Windows/Mac/Linux, just like R. To extract data points from a figure, you’ll need the Figure_Calibration plugin developed by Frederic V. Hessman, available here. Download the Figure_Calibration.class file from that page and save it to your ImageJ/plugins/ directory. Then load up ImageJ.

http://www.astro.physik.uni-goettingen.de/~hessman/ImageJ/Figure_Calibration/ 

 

note:  utiliser capture d’images pour les markers de points et copier coller pour les results