Affichage de CV2.Imshow sur une position de fenêtre spécifique

img = cv2.imread("test.png")
winname = "Test"
cv2.namedWindow(winname)        # Create a named window
cv2.moveWindow(winname, 40,30)  # Move it to (40,30)
cv2.imshow(winname, img)
cv2.waitKey()
cv2.destroyAllWindows()
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