The dataset used in this competition is derived from the work described in the following paper:

Tan, W. R., Chan, C. S., Aguirre, H., & Tanaka, K. (2019). Improved ArtGAN for Conditional Synthesis of Natural Image and Artwork. IEEE Transactions on Image Processing, 28(1), 394-409. https://doi.org/10.1109/TIP.2018.2866698

We do not claim this dataset as our own. Our usage is purely for research purposes only.