Now there are also numerical digits available for neural networks

[Murilo via Digitalmars-d-announce]

Hi everyone. I have finally finished making the images of all 10 
numerical digits. Before, my folder only had letters, now it has 
numbers as well. It's all freely available.

https://themindofmurilomiranda.blogspot.com/2020/01/a-repository-with-many-images-of.html