Update app.py

app.py

@@ -62,7 +62,7 @@ def display_size_selection(default_width, default_height):
 def display_image_upload():
     uploaded_file = st.sidebar.file_uploader("Upload Card Background Image", type=["png", "jpg", "jpeg"])
     if uploaded_file is not None:
-        image = Image.open(uploaded_file)
+        image = Image.open(BytesIO(uploaded_file.read()))
         return image
     else:
         return None