Update utils.py

utils.py

@@ -6,8 +6,9 @@ import io
 
 
 def answer(input_img, selected):
+    image = Image.open(input_img)
     buffer = io.BytesIO()
-    input_img.save(buffer, format="PNG")
+    image.save(buffer, format="PNG")
     image_data = base64.b64encode(buffer.getvalue()).decode('utf-8')
 
     if selected == "Describe things":