How to output all 3 eiganvalues using tensor2metric

I am using the tensor2metric -value to the eigenvalues out, but it only output all 1 eigenvalue map. how do i get all 3

$ tensor2metric dti3.mif -value eigen_3.mif
tensor2metric: [100%] computing metric

In the documentation for tensor2metric, does the flag -num solve your issue? Seems like when paired with -value, should allow you to specify the desired eigenvalues, but is otherwise a default value of 1.

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Yes by using the -num flag, it worked!