Select an image in a stateless form

Select an image in a stateless form

Hello experts!

Could you give me a help with this?

I have a form with products. Each product have an image uploaded and fields with characteristics. I would like to make a stateless form where images of products are dynamically shown, according to the characteristics selected by the clients. The images have to be able to be choosen by the client.

The question is: Which is the way to show images able to be selected?, and how is the hyperlink structure to call images?

Thanks in advance.

José.