Useful functions for the multigrid framework

o restrict
intergrid transfer function: fine-to-coarse projection (full weighting)
o project
intergrid transfer function: coarse-to-fine projection (bilinear interpolation)
o buildOperator
build the differential operator (ie.
o computeCoeff
compute the diffusion coefficients for each point of the data
o gaussSeidel
perform Gauss-Seidel relaxation on Ax=b
o jacobi
perform Jacobi relaxation (see Gauss-Seidel for parameters)
o myMultiply
custom matrix multiplication (takes advantage of the sparse structure of the differential operator)
o weber
compute, for each point, the diffusion coefficients (weber contrast)
Guillaume Heusch (
2.0 Wed 28 Jun 2006 05:19:34 PM CEST

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