The reason why some results are gray

[justinday123]

Some results such as figure 18 (and other results), arc2face generates images in grayscale. What is the reason? I think the reason is normalizing arcface's embedding, using this code.

id_emb = id_emb/torch.norm(id_emb, dim=1, keepdim=True) # normalize embedding

Is normalize is essential? Can't I make the results without grayscale?

[samfxbhgh]

Maybe I think it is caused by the training dataset. You can see AgeDB400, there are many images with grayscale.

[foivospar]

Yes, it is because of the training images in WebFace (AgeDB was only used for evaluation).