How to get ground truth from the dataset? How did you use as a parameter?

[bhaktikhera1]

How to get ground truth from the dataset? How did you use as a parameter? Example : def binary_dice3d(s,g): #dice score of two 3D volumes num=np.sum(np.multiply(s, g)) denom=s.sum() + g.sum() if denom==0: return 1 else: return 2.0*num/denom

def sensitivity (seg,ground): #computs false negative rate num=np.sum(np.multiply(ground, seg )) denom=np.sum(ground) if denom==0: return 1 else: return num/denom