Use Data from Published Plots in R
digitize an image
(deprecated) Read image and calibrate
(deprecated) Mark the data on an image
digitize : a plot digitizer in R
(deprecated) Digitize the data
Import data from a digital image; it requires user input for calibration and to locate the data points. The end result is similar to 'DataThief' and other other programs that 'digitize' published plots or graphs.
Useful links