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how to write equation in matlab

Asked by Elysi Cochin on 24 Jan 2013

please can some help me write the equations below in matlab.... in the following link....

http://img545.imageshack.us/img545/8454/equations.png

please do reply.....

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Elysi Cochin

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1 Answer

Answer by Walter Roberson on 24 Jan 2013
Accepted answer

If I read the equation correctly, then Imu and Isigma do not depend on the x and y parameters and are instead the same for all rows and columns.

Imu = mean2(f)
Isigma = std(f(:), 1);   %the biased standard deviation

10 Comments

Elysi Cochin on 6 Feb 2013

sir like mean2 function is there any function to calculate "variance"..... is variance and standard deviation the same??? please do reply sir.....

Walter Roberson on 6 Feb 2013
Isigma = var(double(f(:)), 1);
Elysi Cochin on 6 Feb 2013

thank u sir...

Walter Roberson

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