["python","image","opencv","image-processing","computer-vision"]
OpenCV & Python - Image too big to display

I have an image that is 6400 × 3200, while my screen is 1280 x 800. Therefore, the image needs to be resized for display only. I am using Python and OpenCV 2.4.9. According to OpenCV Documentation, If you need to show an image that is bigger than the screen resolution, you will need to call namedWindow("", WINDOW_NORMAL) before the imshow. That is what I am doing, but the image is not fitted to the screen, only a portion is shown because it's too big. I've also tried with cv2.resizeWindow, but it doesn't make any difference. import cv2 cv2.namedWindow("output", cv2.WINDOW_NORMAL) # Create window with freedom of dimensions # cv2.resizeWindow("output", 400, 300) # Resize window to specified dimensions im = cv2.imread("earth.jpg") # Read image cv2.imshow("output", im) # Show image cv2.waitKey(0) # Display the image infinitely until any keypress
Although I was expecting an automatic solution (fitting to the screen automatically), resizing solves the problem as well. import cv2 cv2.namedWindow("output", cv2.WINDOW_NORMAL) # Create window with freedom of dimensions im = cv2.imread("earth.jpg") # Read image imS = cv2.resize(im, (960, 540)) # Resize image cv2.imshow("output", imS) # Show image cv2.waitKey(0) # Display the image infinitely until any keypress