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Editorial Team
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Asked: 2026-06-12T06:51:05+00:00

I’m working on an C++ app which uses opencv for some data manipulation and

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I’m working on an C++ app which uses opencv for some data manipulation and visualization. I’m using three to four cvShowImage() statements to visualize the data. I’ve recently noticed, that only the window which has focus, will be updated constantly after each cvShowImage() call. All the other windows only get updated infrequently. Is there a way to make sure that all opencv windows get refreshed and updated?

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1 Answer

  1. Editorial Team

    If you don’t already, I would suggest issuing a cvWaitKey(30) after each cvShowImage() and not only once after the last one. Or you could try displaying all the images in one window.

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