I'm about to teach an image processing course using Octave, based on a successful course using Matlab I taught a few years ago. Happily almost everything translates across without any change, which is delightful. However - the "imshow" command of Matlab has a "pixval on" option, which produces a little status bar overlaid on the image which shows the current position and pixel values under the cursor. This is very nice for teaching and general image exploration. Is there a way of obtaining the same thing in Octave? I know I can do 'image_viewer ("display %s")' and use the display function from Image Magick, but I was wondering if there was a way of having Octave do it directly.
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Octave version of Matlab's "pixval on"?,