diff --git a/demo/sepia_filter.py b/demo/sepia_filter.py
index 501b914eab..f941f4c812 100644
--- a/demo/sepia_filter.py
+++ b/demo/sepia_filter.py
@@ -1,14 +1,27 @@
 import gradio as gr
 import numpy as np
 
-def sepia(img):
+def sepia(input_img):
   sepia_filter = np.array([[.393, .769, .189],
                            [.349, .686, .168],
                            [.272, .534, .131]])
-  sepia_img = img.dot(sepia_filter.T)
+  sepia_img = input_img.dot(sepia_filter.T)
   sepia_img /= sepia_img.max()                          
   return sepia_img
 
-iface = gr.Interface(sepia, gr.inputs.Image(shape=(200, 200)), "image")
+iface = gr.Interface(sepia, gr.inputs.Image(shape=(200, 200)), "image", 
+                     article=
+"""
+This simple image demo returns applies a sepia filter to the input image, as described below: 
+```python
+sepia_filter = np.array([[.393, .769, .189],
+                          [.349, .686, .168],
+                          [.272, .534, .131]])
+sepia_img = input_img.dot(sepia_filter.T)
+sepia_img /= sepia_img.max()                          
+```
+"""
+)
+
 if __name__ == "__main__":
     iface.launch()
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