Extracting data from an image of plots

Hello everyone, We have a pdf page which contains one or more figures which are two-dimensional plots of experimental results. The figures may or may not be embedded in text. Each plot has the x and y axis with their labels and unit measurements marked in the plot. Inside each figure are one or more plots, each with a different color. How can we convert the plot into a table of corresponding x and y values (say for 100 points) ? Looking forward to a solution, Thank you, Himanshu Mishra

How can we convert the plot into a table of corresponding x and y values (say for 100 points) ?
http://arohatgi.info/WebPlotDigitizer/ It's released under GPLv3. There is an instance hosted by the dev. Best, -- François Boulogne. http://www.sciunto.org GPG: 32D5F22F

WebPlotDigitizer works very well for an image with single plot. But when I try it with a research paper with text on it and more than one plot, it works miserably. I don't know if such tool is available online, but I would love to hear suggestions on how to make one. Thank you, Himanshu Mishra
participants (2)
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François Boulogne
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Himanshu Mishra