Extracting data from an image of plots

[Josh Warner]

You may want to look into the work of Matt Terry (@mrterry) from SciPy 2013 
and earlier. There are a number of tools he created, using what may now be 
outdated matplotlib interfaces but which could save you time. One of which 
is yoink (https://github.com/mrterry/yoink), which is particularly good 
with rastered data behind a color map.

Using tools like Inkscape and/or the GIMP you should be able to crop any 
arbitrary figure out of a scanned paper/image and transform it so it's at 
least relatively rectilinear. Save that out as an image and these tools 
start to be useful - though there may be some customization left to go 
depending on what type of figure you're digitizing.

Matt gave a lightning talk at SciPy 2013 about 
yoink: https://youtu.be/ywHqIEv3xXg?t=1890

Josh

On Friday, February 26, 2016 at 9:12:07 AM UTC-7, Himanshu Mishra wrote:
>
> 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scikit-image/attachments/20160226/4c315980/attachment.html>