Hello all,<br><br>I am currently trying to simulate linear isotropic diffusion, which requires taking the divergence of the gradient of an image. To compute the gradient, I used the GradientRecursiveGaussianImageFilter and separated the covariant vectors in different directions using VectorIndexSelectionCastImageFilter. Now, I need to take the divergence of the resulting vector field, however I could not find a way to accomplish this. I have seen that it was formerly suggested to modify VectorGradientMagnitudeFilter but I could not find out how to do that. Can anyone provide me some pointers?<br>
<br>Thanks in advance,<br><br clear="all">Ahmet Burak Yoldemir<br>