Pick a section of an image in c#

Question

I have an image with multiple portraits inside, how can I pick each one of them without cutting the image in photoshop or something like that. The image would be 8 images in row by 3 columns can I do this programatically? Links would help to learn about this topic, not looking for free code, I genuinly don't know how to google for this. I know in Unity they use images like that for animations and I guess somehow loop through them. In my case I only need to pick one randomly.

I added unity tag because game developers might be more familiar with this. If my title isn't great please free to edit it.

This is the image

thank you

Answer 1

You can import texture as multiple sprites. Select it in the project hierarchy and then select Multiple.

.

After that, you can click Sprite Editor to split the texture.

In my case, it sliced the picture like this: