Extract pixel positions from an IR spectrum

Hello, I have images of charts (actually IR spectra). The labels are wavelengths in the x-axis and absorbance in the y-axis. The spectra themselves are in a dark green color and the axis labels and tick marks are in blue. Is there a way to get the pixel positions for the spectra (dark green colored), in the form of a x, y table? Also, would be possible to perform OCR to report the numerical values of the tick marks? I am uploading an example spectrum for reference.
Many thanks for your kind help.


Hi Bernard,

While something like this might be possible, it is definitely not going to be in any good resolution. I would recommend you to try acquiring the original data that was used to produce this plot. Any result you will get out of the plot will be very much tainted by errors.