i am trying to implement probality density function on an image but i can not understand how to calculate data, mu and sigma.here is my code is it right to take data as pixl value

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k = imread('2.jpg');
img2=rgb2gray(k);
sigma =?;
mu=?
pd = makedist('Normal',mu,sigma);
data = img2(I,j)
y = pdf(pd,data);
figure,
plot(data,y,'LineWidth',2)

Accepted Answer

Walter Roberson
Walter Roberson on 23 Aug 2015
mu = mean2(img2);
sigma = std2(img2);
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