update samples: waitKey() usage

Original commit is a5f19f7dd6ae5bc93f73e0417a9e0bfd34c01672
2016-08-12 15:11:30 +02:00
parent 4e7b521438
commit 6d34d6b47e
76 changed files with 142 additions and 154 deletions
@@ -66,5 +66,5 @@ if __name__ == '__main__':
    update(3)
    cv2.createTrackbar( "levels+3", "contours", 3, 7, update )
    cv2.imshow('image', img)
-    0xFF & cv2.waitKey()
+    cv2.waitKey()
    cv2.destroyAllWindows()