cv2.imshow() function is opening a window that always says not responding – python opencv

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You missed one more line:

cv2.waitKey(0)

Then the window shows the image until you press any key on keyboard. Or you can pass as following:

cv2.waitKey(1000)
cv2.destroyAllWindows()

Here, window shows image for 1000 ms, or 1 second. After that, the window would disappear itself. But in some cases, it won’t. So you can forcefully destroy it using cv2.destroyAllWindows()

Please read more tutorials first : http://docs.opencv.org/trunk/doc/py_tutorials/py_tutorials.html

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