Process for stabilizing silver images

A process for stabilizing a black-and white silver image comprising the steps of:

• providing a photographic material comprised of a water impermeable support having a light-sensitive silver halide emulsion layer thereon;
• exposing the material;
• subjecting the exposed material to development processing to obtain a developed image;
• and
• processing the developed image with an aqueous solution containing a compound represented by the following general formula (I) or (II):
• ##STR8## wherein:
• A is --OH, --SO.sub.3.sup..crclbar. or ##STR9## R.sub.1 is H, an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group or a phenyl group,
• R.sub.2 is an alkyl group having 1 to 5 carbon atoms or a substituted alkyl group,
• X.sup..crclbar. is a halogen atom or a p-toluenesulfonate, and
• n is an integer of 2 to 5,
• however, general formula (I) includes an HX salt when A is ##STR10## (wherein X are the same as X.sup..crclbar. described above);
• ##STR11## or an HX salt thereof wherein:
• R.sub.3 is H, an alkyl group having 1 to 5 carbon atoms, a substituted alkyl group or a phenyl group, and
• n, R.sub.2 and X are the same as in the general formula (I).