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how to choose weight (lamda)value for thresholding based intensity contrast and variance?

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sheeba
sheeba 2013-9-6
j(lamda,t)=(1-lamda)|(variance(t)-lamda(mean(t)-mean1(t)| i have got the value for variance and mean value.. but don't know how to choose the lamda value.. also i want to know how to use modulus in matlab code..

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Laurent
Laurent 2013-9-6
For the modulus you should check this link: http://lmgtfy.com/?q=matlab+modulus

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