fixes background flag

app.py

@@ -146,7 +146,7 @@ def inference(img):
         param_lst, roi_box_lst = tddfa(img, [box])
         
         ver_lst = tddfa.recon_vers(param_lst, roi_box_lst, dense_flag=dense_flag)
-        depth_img = depth(img, ver_lst, tddfa.tri, with_bg_flag=True)
+        depth_img = depth(img, ver_lst, tddfa.tri, with_bg_flag=False)
         with torch.no_grad():
             map_score_list = []
             image_x, map_x = prepare_data([img], [list(face)], [depth_img])