IQA-PyTorch v0.1.4

New features

1. Add new metrics: FID, MANIQA
2. Enable image path as inputs. See demo codes in README
3. Add as_loss option to enable gradient backpropagation for metric. Default False.

Fix bugs

1. Fix rmse error
2. Fix benchmark test with PieAPP

Improvements

1. Disable gradient calculation by default for convenience.
2. Add filter2 function to matlab utils
3. Add reduction option to EMDLoss
4. Add crop_border option to PSNR, SSIM