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    %% Blur an Image Using an Average Filter
% Read and display the input image.

% Copyright 2015 The MathWorks, Inc.

   I = imread('pout.tif');
   imshow(I);
%% 
% Compute the integral image.
   intImage = integralImage(I);
%%
% Apply a 7-by-7 average filter.
   avgH = integralKernel([1 1 7 7], 1/49);
   J = integralFilter(intImage, avgH);
%%
% Cast the result back to the same class as the input image.
   J = uint8(J);
   figure
   imshow(J);