how to gamma transform a matrix cancel inf

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Tony
Tony 2014-5-14
回答： Walter Roberson 2014-5-14
I would like to know if its possible to use the transformation gamma on a matrix of images directly. Problem is with the eigen function. I have to change the format to a double i did something like this
dbx=[];
ddbx=[];
for i=1:M
temp=double(S(:,i));
dbx=[dbx temp];
gammaimage= gamma(dbx(:,i));
ddbx=[ddbx gammaimage];
end
i am using the eigen function eig() and get
Error using eig
Input to EIG must not contain NaN or Inf.
not sure how to go about this. Will i have to abandon the idea of using gamma transformation?

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回答（1 个）

Walter Roberson
Walter Roberson 2014-5-14
gamma() is the Gamma function, the extension of the factorial function. gamma(171) = factorial(170) is your limit before you hit infinity.
I would suggest that you are looking for Gamma Correction rather than gamma()

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