gaoming

Results 3 issues of gaoming

here is my srt file [Adam.srt.zip](https://github.com/mepeichun/SubtitleTranslate/files/4261156/Adam.srt.zip)

Hello I saw the LPIPS metric in the metric.py file. I have seen three other metrics in the trainer.py file, but have not seen how to use the LPIPS metric....

Could you give a more clear explanation about the robust normalization?