diff --git a/configs/invdn_denoising.yaml b/configs/invdn_denoising.yaml
index 304c3ca16319dc797574b63e9b704d582dd9b6c0..44eda34cdc424ef40f1fd213e52579f8cea85c8f 100644
--- a/configs/invdn_denoising.yaml
+++ b/configs/invdn_denoising.yaml
@@ -1,5 +1,8 @@
 total_iters: 150000
 output_dir: output_dir
+# tensor range for function tensor2img
+min_max:
+  (0., 1.)
 
 model:
   name: InvDNModel