Abstract: An improved process for forming an amplified dye image on an image-wise, exposed light-sensitive silver halide photographic material is described, which, after developing, is processed with an amplifying solution the improvement being in that (a) the coupler is in stoichiometric excess of at least 50% relative to the amount of silver halide, (b) the dry thickness ratio of the hydrophilic colloid layer to the silver halide emulsion layer is 1 to 10 and (c) the amplifying solution contains hydrogen peroxide.

Abstract: A light-sensitive silver halide photographic material containing a substantially non-diffusible compound having oxidation power on a hydroquinone developing agent in a hydrophilic colloidal layer is processed, after light exposure, with a developer containing the said hydroquinone developing agent to form a high-contrast silver image.

Abstract: There is disclosed a process for the production of a dye image on a silver halide photograhic material which comprises imagewise exposing the photographic material to light and then subjecting the photographic material to development in the presence of both a particular polyfunctional coupler and a particular polyfunctional developing agent.

Abstract: An exposed light-sensitive silver halide photographic material containing a coupler is processed with a developing bath and thereafter with an amplifying bath containing hydrogen peroxide, said process being characterized in that a compound acting on the silver halide at the unexposed portion of the photographic material is incorporated into the developing bath or into a bath used for a treatment effected after the development and before processing with the amplifying bath.

Abstract: An improved method for processing an imagewise exposed light-sensitive silver halide photographic material containing a coupler is described, wherein the siliver halide photographic material is processed with a developing bath and thereafter processed, in the presence of imagewise developed silver and a color developing agent, with a solution containing hydrogen peroxide, whereby, after the development, the developed light-sensitive silver halide photographic material is processed with a solution containing a deactivating agent or a silver halide solvent, and thereafter subjecting the thus processed light-sensitive silver halide photographic material to spraying with and/or intermittent dipping in said solution containing hydrogen peroxide.