how to write algorithm for the given normalization matlab code?

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Hai, here i have given a matlab code for normalization of an image for further processing. explain briefly how to write algorithm for document purpose?

input=imread('Image1.jpg');
dim=size(input,3);
input=im2uint8(input);
output=zeros(size(input));   
if (dim==1 || dim==3)
  for j=1:dim;
      scalVal=sum(sum(input(:,:,j)))/numel(input(:,:,j));
      output(:,:,j)=input(:,:,j)*(230/scalVal);
  end
  output=uint8(output);
end
figure,imshow(output);

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Image Analyst 2015-6-19

I don't know what your question means. Explain how to write an algorithm? For document purposes? Are you asking how to write a scientific paper and submit it to a journal or professional society? Are you asking how to learn how to do computer programming? Or how to learn MATLAB? See this link http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

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