diff --git a/image_embedding_resnet50.yaml b/image_embedding_resnet50.yaml
index cf2c60f..d201a81 100644
--- a/image_embedding_resnet50.yaml
+++ b/image_embedding_resnet50.yaml
@@ -10,21 +10,37 @@ operators:
                 df: '_start_df'
                 name: 'img_path'
                 col: 0
+        outputs:
+            -
+                df: 'img_str'
+        iter_info:
+            type: map
+    -
+        name: 'image_decoder'
+        function: 'towhee/image-decoder'
+        tag: 'main'
+        init_args:
+        inputs:
+            -
+                df: 'img_str'
+                name: 'image_path'
+                col: 0
         outputs:
             -
                 df: 'image'
         iter_info:
             type: map
+ 
     -
         name: 'embedding_model'
         function: 'towhee/resnet-image-embedding' # same as 'resnet50-image-embedding', default user is towhee
-        tag: 'main' # optional
+        tag: 'main'
         init_args:
             model_name: 'resnet50'
         inputs:
             -
                 df: 'image'
-                name: 'img_path'
+                name: 'image'
                 col: 0
         outputs:
             -
@@ -53,11 +69,17 @@ dataframes:
                 name: 'img_path'
                 vtype: 'str'
     -
-        name: 'image'
+        name: 'img_str'
         columns:
             -
                 name: 'img_path'
                 vtype: 'str'
+    -
+        name: 'image'
+        columns:
+            -
+                name: 'image'
+                vtype: 'towhee.types.Image'
     -
         name: 'embedding'
         columns: