Automagically detect the data

[kwinkunks]

Right now you have to crop the borders off an image yourself, which is a pain because you have to go and find the pixel coordinates in GIMP or whatever.

[mycarta]

I would probably try texture classification http://scikit-image.org/docs/dev/auto_examples/plot_glcm.html
It should more or less easily separate:
a) text
b) data
c) empty space around data

[mycarta]

The alternative approach is corner/edge detection:

http://blog.ayoungprogrammer.com/2013/04/tutorial-detecting-multiple-rectangles.html?m=1
http://artsy.github.io/blog/2014/09/24/using-pattern-recognition-to-automatically-crop-framed-art/
http://vkedco.blogspot.ca/2012/08/edge-detection-with-python-pil.html