fix image width and height

app.py

@@ -120,14 +120,15 @@ def generate_description_fn(
         detect_resolution=1024,
         image_resolution=1024
     )
+    width, height = control_image.size
 
     image = pipe(
         prompt=prompt,
         control_image=control_image,
         guidance_scale=0.,
         num_inference_steps=4,
-        width=1420,
-        height=1080,
+        width=width,
+        height=height,
         max_sequence_length=256,
     ).images[0]