Update app.py

app.py

@@ -33,9 +33,14 @@ if show_details:
 # Button to trigger the analysis
 analyze_button = st.button("Analyse the MTSS Image")
 
-if analyze_button:
-    with st.spinner("Analyzing the image..."):
+# Check if an image has been uploaded, if the API key is available, and if the button has been pressed
+if uploaded_file is not None and api_key and analyze_button:
+
+    with st.spinner("Analysing the image ..."):
+        # Encode the image
         base64_image = encode_image(uploaded_file)
+    
+        # Optimized prompt for additional clarity and detail
         prompt_text = (
             "You are a highly knowledgeable accessibility expert. "
             "Your task is to examine the following image in detail. "