Laplacian 2.0 by Bryan C. Smith

(1-3)D sparse Laplacian matrices with eigenvalues and eigenvectors. (laplacian, eigenvalues, eigenvectors)

laplacian2(numpts, varargin)

Laplacian Filter by Muhammad Bilal

This code find the edges in image. (edges, laplacian filter, laplacian)

temp.m

Fast Noise Estimation in Images by Tolga Birdal

Estimate the standard deviation of the noise in a gray-scale image. (computer vision, noise estimation, image processing)

estimate_noise.m

Laplacian in 1D, 2D, or 3D by Andrew Knyazev

Sparse (1-3)D Laplacian on a rectangular grid with exact eigenpairs. (2d, 3d, laplacian)

laplacian(varargin)

laplace.m by Peter Cotton

Smooth compact 1,2 or 3 dimensional atomic probability distribution (del2, density, laplacian)

laplace(xs,A,b,AEq,bEq,varargin)

Smooth Triangulated Mesh by Dirk-Jan Kroon

Accurate smoothing of triangulated patch / mesh (curvature, umbrella, smoothing)

FV2=smoothpatch(FV,mode,itt,lambda,sigma)

Ne=vertex_neighbours(FV)

Ne=vertex_neighbours_double(Fa,Fb,Fc,Vx,Vy,Vz)

Toolbox Graph by Gabriel Peyre

A toolbox to perform computations on graph. (graph theory, meshes, combinatorial)

Toolbox graph - A toolbox to process graph and triangulated...

Isomap(D,ndims,options);

adjacency2incidence(A)

Conformally Mapped Laplacian by Greg von Winckel

Compute eigenfunctions of the laplacian on a conformally mapped square. (differential equation..., laplacian, eigenfunctions)

sqdirichlet(N,f);

Mesh Laplacian by Darren Weber

Calculate Laplacian for triangulated mesh. (triangulated mesh, differential equation..., laplacian)

mesh_laplacian(vertex,face)

Mesh Laplacian Interpolation Operator by Darren Weber

Computes the zero Laplacian interpolation matrix (approximation, interpolation, laplacian)

mesh_laplacian_interp(lap, index);