QMRITools`
QMRITools`
SigmaCalc
SigmaCalc[dti,grad,bvec]
calculates the noise sigma based on the tensor residual,using a blur factor of 10.
SigmaCalc[dti,tens,grad,bvec]
calculates the noise sigma based on the tensor residual, using a blur factor of 10.
SigmaCalc[dti,grad,bvec,blur]
calculates the noise sigma based on the tensor residual,If blur is 1 ther is no blurring.
SigmaCalc[dti,tens,grad,bvec,blur]
calculates the noise sigma based on the tensor residual. If blur is 1 ther is no blurring.
Details
 The following options can be given:

FilterShape "Median" FilterShape is an option for SigmaCalc. Can be "Gaussian" of "Median".