Abstract: A process of forming color images comprises imagewise exposing a silver halide photographic color image-transfer product comprising an image dye-providing compound in the presence of a silver halide developer, and treating the exposed photographic product with an alkaline processing composition in the presence of an amino acid or a combination of an acid and an amine. Color images are achieved having excellent image discrimination (Dmax-Dmin).

Abstract: Novel electron donor precursors have the structure: ##STR1## wherein: Z represents the atoms to complete a mono-, bi- or tricyclic ring system, each ring of which contains 5 to 6 nuclear atoms;n is 1 or 2;R.sup.1 is a monovalent aromatic group when n is 1 and a bivalent aromatic group when n is 2; andR.sup.2 represents hydrogen, an alkyl group, an aryl group, an acyl group, an ester group or an amido group.The compounds are useful in photographic elements, film units and processes to provide electrons to immobile compounds which must accept at least one electron before releasing a diffusible dye or photographic reagent.

Abstract: Copper physical development using certain heterocyclic ligand copper(I) complexes which are resistant to aerial oxidation is disclosed. The copper(I) complexes can be represented by the formulaL(CuX).sub.mwherein L is a monodentate or bidentate heterocyclic ligand, X is an anion and m is the integer 1 or 2. The described physical development compositions can operate in either the disproportionation mode, in which case the composition further comprises, in addition to the copper(I) complex, a ligand for copper(II); or in the reduction mode, in which case the composition further comprises a reducing agent and preferably a base. Generally, nuclei of metals from group VIII and IB of the periodic table are catalytic for the deposition of copper from these compositions. The nuclei can be imagewise formed by exposing an electromagnetic radiation sensitive compound. Physical development formulations, processes and elements are disclosed.