Subscripted assignment dimension mismatch.

% Mean Filter clc clear all close all

original_im=imread('Picture1.tif');

figure,imshow(original_im);

%%%%% Mean Filter Programing without using matlab command %%%%%%

pad_org=padarray(original_im,[1 1],'both'); %All side Zero padding at boundary figure(3);imshow(pad_org);title('With Zero Padding Original Image at Boundary')

for i=1:size(pad_org,1)-2 for j=1:size(pad_org,2)-2 window=zeros(9,1); %% Matrix to store the value of 3 by 3 window win_inc=1;%%initial value of window matrix for k=1:size(window)/3 for l=1:size(window)/3 window(win_inc)=pad_org(i+k-1,j+l-1); win_inc=win_inc+1; end end mean=(1/9)*(window); new_image(i,j)=mean; end end new_image=uint8(new_image); figure(4);imshow(new_image);title('Image After Mean Filtering')

I am getting an error as

Subscripted assignment dimension mismatch.

Error in meanfilter_withoutbuiltin (line 49) new_image(i,j)=mean;%% 5 is the median value of 3 by 3 window

Can anyone help me please.

thank you