nanconv by Benjamin Kraus

Convolution in 1D or 2D ignoring NaNs and (optionally) correcting for edge effects. (conv, conv2, nan)

nanconv(a, k, varargin)

nanconvn by Benjamin Kraus

Convolution in ND ignoring NaNs and (optionally) correcting for edge effects. (conv, conv2, convn)

nanconvn(a, k, varargin)

conv2fft_reuse by Felipe G. Nievinski

Reuse intermediary results in multiple related convolutions with the same data but different kernels (convolution, fft, ifft)

conv2fft (h, X, shape, Xfft)

dirup (dir)

filter2fft (h, X, shape, Xfft)

GPUCONV2 by Dirk-Jan Kroon

Example, Matlab R2010B Cuda CONV2 on GPU using Cuda kernels (cuda, conv2, gpu)

gpuconv2(A,B,SHAPE)

nvcc(varargin)

Mono and bidimensional box-car convolution. Fast. by Andrea monti guarnieri

Fast & simple Boxcar window convolution. Same as conv2(x,ones(n1,n2),'same') (filter, smoothing, convolution)

boxconv(matin,lenc,lenr)

solve 2d wave equation with FDM by Maxim Vedenyov

With 4 visualizations: colormap, surface, refraction, reflection (visualization, conv2, 2d)

as_colormap.m

as_colormap_movie.m

as_surface.m

Separate Kernel in 1D kernels by Dirk-Jan Kroon

Decompose an arbitrary N dimensional filtering kernel into 1D kernels, for faster filtering (2d, gaussian, 3d)

[K1 KN ERR]=SeparateKernel(H)

FFT-based convolution by Bruno Luong

Discrete convolution using FFT method (conv, fft, convn)

convnfft(A, B, shape, dims, options)

convnfft_install

ndnanfilter.m by Carlos Adrian Vargas Aguilera

Filter/smoothing of multidimensional data with an specified window function, ignoring NaNs. (filter design, filter analysis, smooth)

ndnanfilter(X,HWIN,F,DIM,WINOPT,PADOPT,WNAN)

FFW Fastest Filtering in the West by Luigi Rosa

Fast 2D convolution - filtering (conv2, fft, conv)

[out]=detbestlength2(FFTrv,FFTiv,IFFTiv,size1,size2,isreal1...

[out]=fftolamopt2(a,b,opt,shape)

provatempo2.m

CONV2 Overlap-add Method by Luigi Rosa

Overlap-add method of CONV2 using FFT2. (conv2, overlapadd method, convolution)

conv2olam(a,b,mode,siz1,siz2)