# Load source image and convert it to gray
parser = argparse.ArgumentParser(description='Code for Harris corner detector tutorial.')
-parser.add_argument('--input', help='Path to input image.', default='../data/building.jpg')
+parser.add_argument('--input', help='Path to input image.', default='building.jpg')
args = parser.parse_args()
-src = cv.imread(args.input)
+src = cv.imread(cv.samples.findFile(args.input))
if src is None:
print('Could not open or find the image:', args.input)
exit(0)