added scales to preseve the object dimensions

utils/data_utils.py

@@ -305,9 +305,9 @@ class AddSingleTransformation(object):
         elif self.transformationFlag == 'RandomAffine':
             if self.fix_seed == True:
                 torch.manual_seed(0)
-                self.transformation = tio.RandomAffine(degrees=self.transformationMetric)
+                self.transformation = tio.RandomAffine(scales = 0, degrees=self.transformationMetric)
             else:
-                self.transformation = tio.RandomAffine(degrees=self.transformationMetric)
+                self.transformation = tio.RandomAffine(scales = 0, degrees=self.transformationMetric)
         elif self.transformationFlag == 'RandomNoiseMask':
             if self.fix_seed == True:
                 torch.manual_seed(0)