Update app file

app.py

@@ -60,4 +60,14 @@ with col3:
     else:
         image = sahi.utils.cv.read_image_as_pil(IMAGE_TO_URL[radio])
     with st.container(border = True):
-        st.image(image, use_column_width = True)
+        st.image(image, use_column_width = True)
+
+st.write('##')
+
+col1, col2, col3 = st.columns(3, gap='medium')
+with col2:
+    st.markdown('#### Set model parameters')
+    postprocess_match_threshold = st.select_slider(
+        'Select confidence threshold',
+        value = (0,1)
+    )