Ref:Aaron van den Oord,Nal Kalchbrenner,Koray Pixe RNN Kavukcuoglu,Pixel Recurrent Neural Networks, arXiv preprint,2016 Real World PixelRNN Real World Ref: Aaron van den Oord, Nal Kalchbrenner, Koray Kavukcuoglu, Pixel Recurrent Neural Networks, arXiv preprint, 2016