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OpenCV: imshow is not visible without waitKey

OpenCV: imshow で表示しても waitKey を使わないとウィンドウは描画されない

[c++][opencv]
2012-09-06

ということを今まで知らずに使ってた.User Interface - OpenCV v2.4.2 documentation#waitKey によると:

This function is the only method in HighGUI that can fetch and handle events, so it needs to be called periodically for normal event processing ...




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