Update app.py

app.py

@@ -139,13 +139,15 @@ with tab3:
     
     if st.button("Analysis Image"):
         if image_url:
-        try:
-            st.image(image_url, caption="Provided Image", use_column_width=True)
-            caption = captioner(image_url)
-            st.write("**Generated Caption:**")
-            st.write(caption[0]['generated_text'])
-        except Exception as e:
-            st.error(f"An error occurred: {e}")
+            try:
+                st.image(image_url, caption="Provided Image", use_column_width=True)
+                caption = captioner(image_url)
+                st.write("**Generated Caption:**")
+                st.write(caption[0]['generated_text'])
+            except Exception as e:
+                st.error(f"An error occurred: {e}")
+        else:
+            st.warning("Please give a image url.")
 
 # YouTube Transcript Tab
 with tab4:
@@ -196,4 +198,3 @@ with tab5:
             st.write(point_of_view)
         else:
             st.warning("Please enter text to analyze.")
-