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Asked: 2026-05-21T15:19:06+00:00

I have a python program that processes image frames with Python 2.7, PIL, OpenCV,

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I have a python program that processes image frames with Python 2.7, PIL, OpenCV, and numpy/scipy. To the best of my knowledge, it does not maintain any lists of previous frame. Nevertheless, memory consumption increases steadily as the program processes more and more frames.

There are several good discussions of memory profiling solutions for Python, but they seem to focus on 32-bit or Linux solutions. What should I use with 64-bit Python 2.7 on Windows? Initial investigations suggest that the issue is with a C library. I am particularly interested in tools to help detect C library leaks or experience finding leaks in Python / OpenCV / PIL.

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  1. Editorial Team

    I’ve found the tools discussed here very helpful: http://mg.pov.lt/blog/hunting-python-memleaks.html

    There is a version of his code here with some additions for measure numpy array sizes.

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