About the calculation of metrics

[abcxubu]

Thanks for your wonderful work. I have learned a lot from it. I'm a little confused about the calculation of the metrics (e.g., Dice, ASD) in test_3D_utils on line 106 (metric = calculate_metric_percase(label == 1, prediction == 1)). I am wondering the order of 'label == 1' and 'prediction == 1' could be changed.