Software for converting black-and-white images of lines into digital data?

Question

Programming

Hello. You need software to convert image files (cardiograms, encephalograms, etc.) into a file with vertex coordinates, or line coordinates, or some other kind of data that you can work with mathematically.
Image example:

Answer 1

And where, if not a secret, data is taken?
If from the equipment, then doesn't it have a regular function of exporting into something digestible?

Answer 2

I haven’t seen any specific software for such a thing, I don’t think that it exists, but it’s not particularly difficult to write it, it will take a couple of hours at most. I can help with this if needed, just need to specify what you need at the output.
As I understand it, it would be ideal to get an array of chart height values ​​(from -1 to +1) from these charts, but some of the data will be cut off, because in some places overlapping of one chart on another is visible.

Answer 3

In MatLab, the findpeaks(x) function (there are settings) will find all local maxima. Accordingly, findpeaks(-x) are minimums.
What to recognize? You can also use Matlab. But it is easier, as advised, to find a communication interface with the equipment.