Digitizing data from old figures with ImageJ
Tags: data retrieval, digitize, 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.
[caption id=”attachment_1051″ align=”aligncenter” width=”400″ caption=”The example figure that we wish to retrieve data from. We can use … Continue Reading