How call cv::imshow() inside a Plugin

Development Programming & Scripting Blueprint
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1

I tried calling cv::imshow() inside a customized Animation Plugin.

I wanna draw the output from AI model on image, then visualize it for debugging.

But it crashes.

Does anybody knows how to show opencv window? Or, if not ,How can using other alternative way to achieve this?

2

I am stuck on this problem too. Followed different videos (one from UE4: Guidebook, another from Youtube Jordan Duncan), but everything works, except command cv::imshow, which crashes Unreal 5.2:

Unhandled Exception: 0xe06d7363
KERNELBASE
VCRUNTIME140
opencv_world455
opencv_world455
opencv_world455
opencv_world455
…

P.S. UE4: Guidebook tutorial doesn’t crash, but the Material is black.

1 Like
3

Same here. with imshow and imwrite.
Does it have anything to do with us making opencv run in its own thread ?

b