@@ -50,7 +50,8 @@ write("r:"+r+" g:"+g+" b:"+b+" a:"+a+"\n");

 			imagemapping=Image._load(argv[i+1]);

 		}

 		xsize=ysize=xoff=yoff=0;

-		xsize=(int) (geom/"x")[0];

+        	if(sizeof(geom/"x")>1)

+			xsize=(int) (geom/"x")[0];

         	if(sizeof(geom/"x")>1)

                 	ysize=(int) (((geom/"x")[1])/"+")[0];

         	if(sizeof(geom/"+")>1)