Screen to the full screen without pressing 'f'

gpqls7669 · May 31, 2020, 1:43pm

jkjung-avt/tensorrt_demos/blob/master/utils/display.py#L35


def show_fps(img, fps):
    """Draw fps number at top-left corner of the image."""
    font = cv2.FONT_HERSHEY_PLAIN
    line = cv2.LINE_AA
    fps_text = 'FPS: {:.2f}'.format(fps)
    cv2.putText(img, fps_text, (11, 20), font, 1.0, (32, 32, 32), 4, line)
    cv2.putText(img, fps_text, (10, 20), font, 1.0, (240, 240, 240), 1, line)
    return img


def set_display(window_name, full_scrn):
    """Set disply window to either full screen or normal."""
    if full_scrn:
        cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN,
                              cv2.WINDOW_FULLSCREEN)
    else:
        cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN,
                              cv2.WINDOW_NORMAL)

github.com

jkjung-avt/tensorrt_demos/blob/master/trt_ssd.py#L74


            img = show_fps(img, fps)
            cv2.imshow(WINDOW_NAME, img)
            toc = time.time()
            curr_fps = 1.0 / (toc - tic)
            # calculate an exponentially decaying average of fps number
            fps = curr_fps if fps == 0.0 else (fps*0.95 + curr_fps*0.05)
            tic = toc
        key = cv2.waitKey(1)
        if key == 27:  # ESC key: quit program
            break
        elif key == ord('F') or key == ord('f'):  # Toggle fullscreen
            full_scrn = not full_scrn
            set_display(WINDOW_NAME, full_scrn)


def main():
    args = parse_args()
    cam = Camera(args)
    cam.open()
    if not cam.is_opened:
        sys.exit('Failed to open camera!')

If you look at the code, you can see that it switches to full screen by pressing ‘f’. What I want is to be a full screen without pressing F key.

cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN,
cv2.WINDOW_FULLSCREEN)

I know I can use this part, but I don’t know where to put it.

Where and how should I put it?