Update explain.py

explain.py

@@ -9,7 +9,7 @@ def do_explain(transform, image, class_index=None, use_threshold=False):
 
     transformed_image = transform(image)
     viz = generate_visualization(
-        transformed_image, class_index=class_index, method="gradcam", use_threshold=False
+        transformed_image, class_index=class_index, use_threshold=use_threshold
     )
 
     axs[1].imshow(viz)