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Python example to show an image in full screen by opencv
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# -*- coding: utf-8 -*- | |
""" | |
Created on Thu Jun 22 16:44:27 2017 | |
@author: sakurai | |
""" | |
import numpy as np | |
import cv2 | |
import screeninfo | |
if __name__ == '__main__': | |
screen_id = 2 | |
is_color = False | |
# get the size of the screen | |
screen = screeninfo.get_monitors()[screen_id] | |
width, height = screen.width, screen.height | |
# create image | |
if is_color: | |
image = np.ones((height, width, 3), dtype=np.float32) | |
image[:10, :10] = 0 # black at top-left corner | |
image[height - 10:, :10] = [1, 0, 0] # blue at bottom-left | |
image[:10, width - 10:] = [0, 1, 0] # green at top-right | |
image[height - 10:, width - 10:] = [0, 0, 1] # red at bottom-right | |
else: | |
image = np.ones((height, width), dtype=np.float32) | |
image[0, 0] = 0 # top-left corner | |
image[height - 2, 0] = 0 # bottom-left | |
image[0, width - 2] = 0 # top-right | |
image[height - 2, width - 2] = 0 # bottom-right | |
window_name = 'projector' | |
cv2.namedWindow(window_name, cv2.WND_PROP_FULLSCREEN) | |
cv2.moveWindow(window_name, screen.x - 1, screen.y - 1) | |
cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN, | |
cv2.WINDOW_FULLSCREEN) | |
cv2.imshow(window_name, image) | |
cv2.waitKey() | |
cv2.destroyAllWindows() |
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