import cv2
def cv2_show_image(window_name, image,
size_wh=None, location_xy=None):
"""Helper function for specifying window size and location when
displaying images with cv2.
Args:
window_name: str window name
image: ndarray image to display
size_wh: window size (w, h)
location_xy: window location (x, y)
"""
if size_wh is not None:
cv2.namedWindow(window_name,
cv2.WINDOW_KEEPRATIO | cv2.WINDOW_GUI_NORMAL)
cv2.resizeWindow(window_name, *size_wh)
else:
cv2.namedWindow(window_name, cv2.WINDOW_AUTOSIZE)
if location_xy is not None:
cv2.moveWindow(window_name, *location_xy)
cv2.imshow(window_name, image)
