It was only in that that he [Raskolnikov] recognised his criminality, only in the fact that he had been unsuccessful and had confessed it. (Epilogue, 1, 6-7)
Raskolnikov never explicitly says he regrets his pre-prison actions, though there is plenty of evidence to argue an implied regret. Either way, at this moment Raskolnikov is still dehumanizing Alyona, and Lizaveta by stating his failure to bring positive meaning to the murders, and his act of confessing, made the murders crimes, and thus himself a criminal. He doesn't judge the two women as human.