use matrices and not images

[popgenomics]

Hello,
I would like to use YOLO directly on 2D matrices of values, and not images (.png or .jpg), especially for storage reasons on my computer.
I think that internally, YOLO performs a form of conversion of the image (.png or .jpg) into a matrix, so why not give it as input directly a matrix ... Do you know if this is something that can be done by me please?
Kind regards,
Camille