Opencv Imshow Not Displaying Image in Osx

OpenCV imshow not displaying image in osx

Thanks to @DanMašek for the lead on this one, and to all the people on this page: http://answers.opencv.org/question/160201/video-window-not-loading-frame/

To repeat what they said, what worked for me was the following:

To resolve this, locate the file window_cocoa.mm; if built from source it'll be in opencv/modules/highgui/src.

Change the following:

@implementation CVView
#if defined(__LP64__)
@synthesize image;
#else // 32-bit Obj-C does not have automatic synthesize
@synthesize image = _image;
#endif

To this:

@implementation CVView
@synthesize image = _image;

Do the same thing for the CVWindow and CVSlider implementations to accommodate videos as well.

Recompile OpenCV and test out your code.

Hope this helps other people struggling with this issue!

cv2.imshow() is not working properly in PyCharm (MacOS)

With Ubuntu 18.04 and Anaconda environment I was getting the error with Pycharm as

process finished with exit code 139 (interrupted by
signal 11 sigsegv)

Solved it by pip install opencv-python-headless in addition to pip install opencv-python

OpenCV window not working on mac

It was a silly installation problem.

I wholeheartedly apologize.

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