Update app.py

app.py

@@ -181,7 +181,7 @@ uploaded_file = st.file_uploader(
     "Choose an image of your mouth", type=['jpg', 'jpeg', 'png'])
 
 if uploaded_file is not None:
-    img = Image.open(uploaded_file)
+    img = Image.open(uploaded_file).convert('RGB')
     cv_img = np.array(img)
     cv_img = cv2.cvtColor(cv_img, cv2.COLOR_RGB2BGR)
     # img2 = Image.open('test.jpg')