An image formation process is disclosed, comprising overlapping an imagewise exposed silver halide photographic material onto a processing element with an aqueous medium being present between the photographic material and the processing element to perform development, thereby forming an image in the photographic material, wherein the aqueous medium contains at least a color developing agent or a precursor thereof, and the aqueous medium having a viscosity of 10.0 to 15000 cp at 25° C.