InterpFromGridToMesh radius of influence

kevinl

Hi,

If I understood correctly, InterpFromGridToMesh do a bilinear interpolation on the vertices. If the mesh grid is coarser than the cartesian grid I am assuming that the bilinear interpolation on a vertex uses the four sides of the square cell in which it is included. Is there a way to increase the "radius of influence" of the interpolation method to take into account multiple cartesian grid cells aroung the vertex?

Thanks,

Kevin

mathieumorlighem

Hi Kevin,

the current implementation does not allow a "radius of influence". What you need to do is change the grid before interpolating by using a smoothing technique (like a Gaussian filter), and then perform the interpolation. Matlab provides several filters that you can use: http://www.mathworks.com/help/images/ref/fspecial.html

Best

Mathieu