diff --git a/modules/deeplearning/srcnn_l1b_l2.py b/modules/deeplearning/srcnn_l1b_l2.py
index b344ac686866a597a8662f322b3f07fc7ce2cc38..79ac4b3cfc1582e634c53c738b45c15755355763 100644
--- a/modules/deeplearning/srcnn_l1b_l2.py
+++ b/modules/deeplearning/srcnn_l1b_l2.py
@@ -4,7 +4,8 @@ import tensorflow as tf
 import util.util
 from util.setup import logdir, modeldir, cachepath, now, ancillary_path
 from util.util import EarlyStop, normalize, denormalize, resample, resample_2d_linear, resample_one,\
-    resample_2d_linear_one, get_grid_values_all, add_noise, smooth_2d, smooth_2d_single
+    resample_2d_linear_one, get_grid_values_all, add_noise, smooth_2d, smooth_2d_single, median_filter_2d,\
+    median_filter_2d_single, downscale_2x
 import os, datetime
 import numpy as np
 import pickle