add help and default value "" for --histogram_ref_file parameter
@@ -67,7 +67,8 @@ def run():
type=int)
parser.add_argument(
"--histogram_ref_file",
- help="A reference of histogram for intensity normalisation")
+ help="A reference of histogram for intensity normalisation (optional)",
+ default="")
parser.add_argument(
"--num_gpus",
