ESRGAN: https://arxiv.org/pdf/1809.00219.pdf
SRGAN: https://arxiv.org/pdf/1609.04802.pdf
Selection Unit: https://openaccess.thecvf.com/content_cvpr_2017_workshops/w12/papers/Choi_A_Deep_Convolutional_CVPR_2017_paper.pdf
Style Transfer: https://arxiv.org/pdf/1508.06576.pdf
Style Transfer Johnsons: https://arxiv.org/pdf/1603.08155.pdf
WGAN-GP: https://arxiv.org/pdf/1704.00028.pdf
Pix2Pix: https://arxiv.org/pdf/1611.07004.pdf