#image quality

pytorch-fid is a tool that implements the Fréchet Inception Distance (FID) for assessing the similarity between two sets of images in PyTorch. It helps in evaluating the performance of Generative Adversarial Networks (GANs). The tool is easy to install and use, supports GPU evaluation, and allows flexibility in selecting feature layers. Note that using different layers can change the FID score magnitude. pytorch-fid also supports generating `.npz` archives for efficient image comparison across models. Minor differences exist from the TensorFlow version due to backend variations.