I am completely new to ImageJ and image processing, and I am currently working on putting together an ImageJ script written in Python that asks the user to select an image and then finds some edges (based on user input) and report the results in a GUI such as a pop-up window. Essentially, an image is loaded into the script based on what the user selects, and then the script would detect the location of web edges in the image and report the location of those edges in a GUI. Are there already built in Macros/Commands I can use for this? The main goal is to find the left and right edge of the web (the location in some unit of length such as nm, m, cm) and report the locations in a pop-up window. Thank you very much!