Extract data from a PNG/TIFF
Sometimes it’s useful to be able to extract data from a published figure. If the figure isn’t a vector based format (for which the numeric data is probably still in the file), it’s possible to digitize the image with R, click the points and extract it that ...
![](https://aghaynes.files.wordpress.com/2018/12/fig2a_kremers2015_rep.png?w=497)