Rick Sayre wrote: > 2203a2204,2207 >> if ((frame_topBand % 2) != 0) { >> fprintf(stderr, "Top crop size must be a multiple of 2\n"); >> exit(1); >> } I don't have any comments on your patch other than to advise you to use unified format (specify '-u'). Others might pay attention to it then. -- -Mike Melanson