Extracting data from an image of plots

[Himanshu Mishra]

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
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