diff --git a/README.md b/README.md
index dd6b664..e869322 100644
--- a/README.md
+++ b/README.md
@@ -2,50 +2,31 @@
 
 *author: Kaiyuan Hu, Rentong Guo*
 
-
-
 <br />
 
-
-
 ## Description
 
 An image decode operator implementation with OpenCV.
 
-
-
 <br />
 
-
-
 ## Code Example
 
-Load a image from path './dog.jpg'. 
+Load a image from path './src_dog.jpg'. 
 
- *Write the pipeline in simplified style:*
+*Write a pipeline with explicit inputs/outputs name specifications:*
 
 ```python
-import towhee
+from towhee.dc2 import pipe, ops, DataCollection
 
-towhee.glob('./dog.jpg') \
-  .image_decode.cv2() \
-  .show()
+p = (
+  pipe.input('path')
+  .map('path', 'image', ops.image_decode.cv2_rgb())
+  .output('path', 'image')
+)
 ```
 
-*Write a same pipeline with explicit inputs/outputs name specifications:*
-
-```python
-import towhee
-
-towhee.glob['path']('./dog.jpg') \
-  .image_decode.cv2['path', 'img']() \
-  .select['img']() \
-  .show()
-```
-
-
-
-<img src="./show_result.jpg" height="150px"/>
+<img src="./result.png" height="150px"/>
 
 
 
@@ -57,7 +38,7 @@ towhee.glob['path']('./dog.jpg') \
 
 Create the operator via the following factory method:
 
-***image_decode.cv2()***
+***image_decode.cv2_rgb()***
 
 
 
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diff --git a/src_dog.jpg b/src_dog.jpg
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