diff --git a/README.md b/README.md
index 047f520..f8816e7 100644
--- a/README.md
+++ b/README.md
@@ -22,18 +22,20 @@ An image crop operator implementation with OpenCV.
 
 Crop the face from 'avengers.jpg'.
 
-```python
 
-import towhee
-
-towhee.glob['path']('./avengers.jpg') \
-  .image_decode['path', 'img']() \
-  .face_detection.retinaface['img', ('box','score')]()\
-  .image_crop[('img', 'box'), 'crop'](clamp = True)\
-  .select['img','crop']()\
-  .show()
 ```
+from towhee.dc2 import pipe, ops, DataCollection
+
+p = (
+    pipe.input('path')
+        .map('path', 'img', ops.image_decode())
+        .map('img', ('box','score'), ops.face_detection.retinaface())
+        .map(('img', 'box'), 'crop', ops.image_crop(clamp = True))
+        .output('img', 'crop')
+)
 
+DataCollection(p('./avengers.jpg')).show()
+```
 
 <img src="./result2.png" height="150px"/>