Could you please add a command-line interface with image directory as argument? ex) * [Inception Score](https://github.com/openai/improved-gan/blob/master/inception_score/model.py) * [FID score](https://github.com/mseitzer/pytorch-fid/tree/802da3963113b5b5f8154e0e27580ee4c97460ab) -> `./fid_score.py path/to/dataset1 path/to/dataset2`