Thread Subject: plot data from diagram

Hello!

Given a figure from a PDF , JPG, or PNG file, what's the easiest way to replot this data in matlab ?

I'm hoping that there's a program out there that takes a plot from a publication for example, and when given max and min values for the axes, is able to generate the data by scanning the image.

This is of course a massively useful tool that would be useful to almost everyone (especially if you want to compare your own result on top of a published result yourself) , but it's of course a massive pain to plot out points by hand and then put a spline through them.

Of course many of you have encountered this problem before, what's the best solution you've found so far ?

Thank you !

"Juliette Salexa" wrote in message <ivut68$o0v$1@newscl01ah.mathworks.com>...
> Hello!
>
> Given a figure from a PDF , JPG, or PNG file, what's the easiest way to replot this data in matlab ?
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A quick search of the FEX led me to this.

http://www.mathworks.com/matlabcentral/fileexchange/4316-reverseplot

I haevn't used it myself, but it seems to be getting pretty good reviews.

There's also this one:

http://www.mathworks.co.uk/matlabcentral/fileexchange/7173-grabit