I have a 2D list which can be plotted as follows:
Based on the plotted image, I would like to select some of the shapes on the image and extract the data for further analysis, for example,
Is there any interactive tool or function in Mathematica which can serve the purpose?
A sample data can be downloaded here: https://drive.google.com/file/d/1aY5Iq1eqhRuzJ2sQ7dtPZ3b5KONwhm58/view?usp=sharing
Many thanks in advance.