Anisotropic / Isotropic 3-D Gaussian profile

Gaussian3D Creates 3-D Gaussian Kernel of specified width sigma_array=[sigma_x, sigma_y, sigma_z]

Gaussian3D Creates 3-D Gaussian Kernel of specified width sigma_array=[sigma_x, sigma_y, sigma_z]

How to use the function:
Sx=3;Sy=4;Sz=5;
G = Gaussian3D([Sx, Sy, Sz], [7*Sx, 7*Sy, 7*Sz]);