Update app.py

app.py

@@ -149,7 +149,7 @@ if image_file is not None:
     #image=cv2.imread(image_file)
     image = Image.open(image_file) 
     image=np.asarray(image)
-    if len(image_np.shape) == 2:
+    if len(image.shape) == 2:
     	image = cv2.cvtColor(image,cv2.COLOR_GRAY2RGB)
     st.subheader("Original Image")  
     st.image(image,width=1100)