Add option to supress fancy output

imgrate.py

@@ -55,6 +55,7 @@ if __name__ == '__main__':
         ap = ArgumentParser()
         ap.add_argument('images', type=str, nargs='+', help='')
         ap.add_argument('-d', '--delete', action='store_true', help='Delete all but the best quality image.')
+        ap.add_argument('-q', '--quiet', action='store_true', help='Print quality measurements only.')
         return ap.parse_args()
 
 
@@ -63,6 +64,9 @@ if __name__ == '__main__':
         maximum = max(ratings, key=ratings.get)
 
         for rating in ratings.keys():
+            if args.quiet:
+                print(ratings[rating])
+            else:
                 maxmark = '*' if rating == maximum and len(ratings) > 1 else ' '
                 print('{}imgrate("{}") = {}'.format(maxmark, rating, ratings[rating]))