Generation of hard copy color photo reproductions from digitally

Details Generation of hard copy color photo reproductions from digitally Generation of hard copy color photo reproductions from digitally

1990-12-21

1993-07-27

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 75, H04N 123, H04N 146

Patent

active

052315061

ABSTRACT:
A hybrid multiple color print reproduction scheme for a digital color image photo-finishing system employing a digitally driven high spatial resolution color printer converts a stored digital positive (e.g. RGB-representative) color image into a second digital color (e.g. CYM-representative) image. This second digital image effectively corresponds to a mirror-reversed complement of the positive color image and is digitally adjusted such that its tone and color characteristics optimize reproduction of the positive image via a conventional chemical development process. The complement color image is output to a digital printer which prints an `internegative` image onto a transparency medium, rather than the customary print paper. This digitally produced `internegative` is used to replicate multiple copies of the original image using a conventional analog electro-optic system and an associated chemical-based print developing unit, thereby providing a substantial savings in reproduction time and costs.

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