do you have a sample picture
have you seen color pictures fused into glass? The only color pictures I have seen are fuseable decals that are screenprinted with glass powders or glass paints onto the decal paper or screen printed directly on the glass with those powders or paints.
What you could try is to print those decal papers with a regular laser color printer, transfer it to the glass and seal it with a thin clear lacquer – which I think would be OK for wall art or something that does not get used like a dish or bowl.
petra kaiser – http://www.kaiserlee.com