GUI (GUIDE) with images leaking memory
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Matlab 2018b with GUIDE running on Win 7.
I am programming a GUI that displays small image "thumbnails" from a directory in an axes object. The user selects an image, then presses a button to load said image into a larger axes object for analyses. I am saving the image data and other variables to a series of structures, which I am storing in the main figure using appdata.
My problem is that the GUI is leaking memory. While sitting dormant for 15 minutes, my computer's memory usage increases from 10 GB to 22 GB. The memory usage increases further when I use the GUI -- up to 30GB. At this point, Matlab seems to stall, and I often must close Matlab from the Windows Task Manager to recover the memory. If I am able to close the GUI figure, the memory is NOT returned.
I have researched this issue extensively, and have tried the suggested fixes ("pack" command, "Manage GUI memory" and "Resolve 'Out of Memory' Errors" in the documentation, storing appdata to the Desktop, restarting the computer, etc, etc). None have worked. I don't mind saying that I am very frustrated. Has anyone else had this problem, and how did you fix it?
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Andrew Stevens
2020-10-14
Did you ever figure this out? I am having exactly the same problem with a non-GUIDE GUI. The memory just goes up when the GUI is idle and really chews up memory as I interact with the GUI. I am using R2020a and am also looking at image data (using imagesc function) in the GUI. Looking through the guidata, I cannot find any variables that can account for the memory usage.
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