add image size output

Author: tobybreckon

sobel.py

@@ -114,6 +114,10 @@ def nothing(x):
         cap.set(cv2.CAP_PROP_FRAME_HEIGHT, args.set_resolution[1])
         cap.set(cv2.CAP_PROP_FRAME_WIDTH, args.set_resolution[0])
 
+    print("INFO: camera resolution : (",
+          cap.get(cv2.CAP_PROP_FRAME_WIDTH), "x",
+          cap.get(cv2.CAP_PROP_FRAME_HEIGHT), ")")
+
     while (keep_processing):
 
         # if video file successfully open then read frame from video