hi momus

im confused at what you mean by plate images ..
do you mean wet plate or dry plate ?

i can't speak for wet plate

BUT ... it IS possible to coat glass with liquid emulsion and print on the glass plate
in the darkroom with an enlarger and use the plate as an internegative that is
printed onto photo paper ... or you can put a background behind the plate and make it the final image
its not as hard as you might think ...