fix sam2 models

config_example.yaml

@@ -14,6 +14,8 @@ matting:
   use_disparity_mapping: true
   memory_offload: true
   fp16: true
+  sam2_model_cfg: "sam2_hiera_l.yaml"
+  sam2_checkpoint: "models/sam2_hiera_large.pt"
   
 output:
   path: "path/to/output/"