BASE FOR PRINTING, COLOR PRINT, SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL, METHOD FOR IDENTIFYING PRINTED IMAGE, METHOD FOR COPYING PRINTED IMAGE AND METHOD FOR CONTROLLING IMAGE FORMATION

摘要

PROBLEM TO BE SOLVED: To provide a copyright protecting technique which does not affect the quality of a printed image, i.e., a copyright protecting technique which produces an adverse influence only on the copied image when a person attempts to make illegal copying of a print having the copyright. ;SOLUTION: The coupler-contg. layer in the method for identifying the image formed from a silver halide photographic sensitive material having at least one layer of the layer contg. silver halide emulsions and couplers on one side of a reflection base contains at least one kind of the compd. forming the compd. which generates fluorescence after processing and the fluorescence of the compd. which generates the fluorescence described above of the formed image is measured. The copied image is adjusted in accordance with the measured fluorescence.;COPYRIGHT: (C)1999,JPO