Questions about getting data, files, images etc. from various formats into a form that can be read, tranformed and manipulated by Mathematica

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33
votes
5answers
4k views
+50

How can I extract data points from a black and white image?

Consider the following graph (source): Is there any way to extract the data points from this image in a semi-automatic way? I have seen, and tried the methods suggested in this question, but they ...
57
votes
3answers
5k views
+50

Recovering data points from an image

Unfortunately, some data can only be obtained in picture form (Japanese publications anyone?). Since this cannot be worked with, it has to be converted to a dataset that can; I was wondering whether ...