Update app.py

app.py

@@ -266,7 +266,7 @@ with gr.Blocks() as demo:
                             run_main,  
                             mask_np_list=mask_np_list, 
                             mask_label_list=mask_label_list,
-                            image_gt=image,
+                            image_gt=np.array(image),
                             num_tokens=int(num_tokens),
                             embedding_learning_rate = float(embedding_learning_rate), 
                             max_emb_train_steps = int(max_emb_train_steps),