i have written a code to get the probability of pixels value as '1' for implementing huffman compression

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juveria fatima 2018-3-12

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https://ww2.mathworks.cn/matlabcentral/answers/387729-i-have-written-a-code-to-get-the-probability-of-pixels-value-as-1-for-implementing-huffman-compres

A = imread('lena1.jpg');
A = reshape(uint8(A), [1 512*512*3]);
s = size(A);
[rows columns numberOfColorBands] = size(A);
col1 = 1;
col2 = floor(columns/2);
col3 = col2 + 1;
row1 = 1;
row2 = floor(rows/2);
row3 = row2 + 1;
% Now crop
upperLeft = imcrop(A, [col1 row1 col2 row2]);
count = zeros(1,256);
for i =1:s(1)
    for j =1:s(2)
        count(uint8(A(i,j)+1)) = count(uint8(A(i,j)+1))+1;
    end
end
count = double(count) /(512*512*3);
sumofprob=sum((count))
plot(count)