So I want to create an anaglyph image where a specific custom text message pops out in 3D when viewed with red-cyan glasses. I'm making this as a gift for a friend.

I tried googling for online generators that could make it, but found mostly Magic Eye ones that don't have Anaglyph support. I found one on cogneurolab.org, but I would have to manually draw letters.

I think this type of picture is called "Anaglyph Random Dot Stereogram", but I might be wrong (you can correct me).

So do you guys know any app/website/tutorial that would help with creating images like this?