cv2 namedwindow

1import cv2
2img = cv2.imread('/path_to_image/opencv-logo.png')
3cv2.imshow('image',img)
4cv2.waitKey(0)
5cv2.destroyAllWindows()
6
7# to use it in a loop
8k = cv2.waitKey(0)
9if k == 27:         # wait for ESC key to exit
10    cv2.destroyAllWindows()
11elif k == ord('s'): # wait for 's' key to save and exit
12    cv2.imwrite('messigray.png',img)
13    cv2.destroyAllWindows()
14

1cv2.namedWindow("Frame_Name", cv2.WINDOW_NORMAL)