HighGUI (OpenCV) window from IPython
If you run an interactive ipython session, and want to use highgui windows, do
In detail: HighGUI is a simplified interface to display images and video from OpenCV code. It should be as easy as:
import cv2 img = cv2.imread("image.jpg") cv2.namedWindow("preview") cv2.imshow("preview", img) cv2.waitKey()
It does work from the script, but it doesn't work from the interactive ipython session (no windows appears until
waitKey, the window remains black. Run
cv2.startWindowThread() and it'll work as intended.