diff --git a/README.md b/README.md
index 363e6ce..03d893e 100644
--- a/README.md
+++ b/README.md
@@ -22,9 +22,11 @@
 
 
 ## Video Matting Demo 
-We provide two real-time portrait video matting demos based on WebCam.   
+We provide two real-time portrait video matting demos based on WebCam.  When using the demo, you can move the WebCam around at will. 
 If you have an Ubuntu system, we recommend you to try the [offline demo](demo/video_matting/webcam) to get a higher *fps*. Otherwise, you can access the [online Colab demo](https://colab.research.google.com/drive/1Pt3KDSc2q7WxFvekCnCLD8P0gBEbxm6J?usp=sharing).
 
+<img src="doc/gif/video_matting_demo.gif">
+
 
 ## Image Matting Demo
 We provide an [online Colab demo](https://colab.research.google.com/drive/1GANpbKT06aEFiW-Ssx0DQnnEADcXwQG6?usp=sharing) for portrait image matting.  
diff --git a/doc/gif/video_matting_demo.gif b/doc/gif/video_matting_demo.gif
new file mode 100644
index 0000000..08be798
Binary files /dev/null and b/doc/gif/video_matting_demo.gif differ