added progress bar

app.py

@@ -210,7 +210,6 @@ st.markdown("This app puts color into your black and white pictures")
 st_title_message = st.empty()
 st_progress_bar = st.empty()
 st_file_uploader = st.empty()
-st_submit_form = st.empty()
 st_input_img = st.empty()
 st_output_img = st.empty()
 st_download_button = st.empty()
@@ -241,16 +240,17 @@ if colorizer is not None:
     st_title_message.markdown("**To begin, please upload an image** 👇")
 
     #Choose your own image
-    with st_submit_form.form("my-form", clear_on_submit=True):
-        uploaded_files = st_file_uploader.file_uploader("Upload a black and white photo", 
-                                                type=['png', 'jpg', 'jpeg'],
-                                                accept_multiple_files=True)
-        submitted = st.form_submit_button("UPLOAD!")
+    uploaded_files = st_file_uploader.file_uploader("Upload a black and white photo", 
+                                            type=['png', 'jpg', 'jpeg'],
+                                            accept_multiple_files=True)
 
-    if submitted and uploaded_files is not None:
+    if uploaded_files is not None:
         if len(uploaded_files) == 1:
             display_single_image(uploaded_files[0], max_img_size)
         elif len(uploaded_files) > 1:
             process_multiple_images(uploaded_files, max_img_size)
+        
+        # Clear uploaded files
+        uploaded_files.seek(0)