MODELING OF THE MODULATION TRANSFER-FUNCTION OF SILVER-HALIDE LIGHT-SENSITIVE LAYER INCLUDING DIR AND DAR DYE COUPLERS

A mathematical model of the modulation transfer function of silver hal ide light-sensitive layer which includes dye couplers of DIR (Developm ent Inhibitor Releasing) and DAR (Development Accelerator Releasing) t ypes is presented in this paper. Contemporary methods of the productio n of colour photographic materials purposely utilize adjacency effect based on the strong but locally restrained, photographic development. As a result of such a mechanism of the photographic image formation fr om organic dyes, improved quality of the image, especially contour con tour and the modulation transfer function were obtained. In order to s tudy both qualitative and quantitative relationships between scattered lights within photographic layers, theoretical model simulating these processes has been developed. The above model enables the analysis of the influence of adjacency effects on the properties of photographic materials when inhibitors of the photographic development of dye compo nents DIR and accelerators of the photographic development of componen ts of DAR types are applied.