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%function im_out = downByInt( im, factor )

im = imread('sample.jpg');

im = uint8(im);

im = rgb2gray(im);

factor = 5;

h_in = size(im, 1);

h_out = floor(h_in/factor);

factor2 = 2^nextpow2(factor); %Next highest 2's multiple eg: 3->4, 5->8

%Upsampling

h_temp = factor2 * h_in;

im_temp = zeros(h_temp, h_temp);

for i = 1:h_temp %Iterate over rows

i_out = i*factor2-1;

if(i_out+factor2-1 > h_in)

continue;

end

for j = 1:h_temp %Iterate over cols

j_out = j*factor2-1;

if(j_out+factor2-1 > h_in)

continue;

end

matWindow = im(i_out:i_out+factor2-1, j_out:j_out+factor2-1);

resultMatWindow = sum(sum(matWindow));

resultMatWindow = floor(resultMatWindow/(factor*factor));

im_temp(i,j) = resultMatWindow;

end

end

%end