fix import in binary_masking layer
@@ -6,6 +6,7 @@ import scipy.ndimage as ndimg
from scipy.ndimage.morphology import binary_fill_holes as fill_holes
from niftynet.utilities.misc_common import look_up_operations
+from niftynet.utilities.misc_common import otsu_threshold
from niftynet.layer.base_layer import Layer
try:
