image filtering in simulink?

sir, Regarding the image filtering in sysgen using 5x5 filtering block I need to do iteration, i.e for example in matlab code I have

                  k=0;

                  M=10

                   for k : M

                            img1=cos(k*img);

                            imfilter(img1, filtter_kernel) ;

                   end

               -----------------------------------------------------------

so that means I have to perform the image filtering 11 times at a single go, as is very clear from the code above while mapping it in SYSGEN simulink model.I have designed it in simulink model but I need to execute the model 11 times as it is very clear from the code. Is it possible ?? I have tried but only one simulation is executing but the rest 10 times is not becoming possible..is there any wayout....