Lithophane Colour Chart
/I thought it might be fun to make a lithophane of a colour test chart just to get an idea of how well colours are resolved and what colours you could get. Above you can see the original chart. I ran it through Colour Lithophane Maker and then printed it.
This is the lithophane that I got. Quite interesting. I think it might be worth running your images through a “posterise” filter of some kind before making the lithophane.