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updated 1 year ago

3D Euclidean Distance Transform for Variable Data Aspect Ratio by Yuriy Mishchenko

Implementation of 3D Euclidean distance transform for data with non-trivial aspect ratio. (transforms, distance transform, aspect ratio)

D=bwdistsc(bw,aspect)

D=bwdistsc1(bw,aspect,maxval)

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updated 4 years ago

Hidden Markov Tree model of Contourlet Transform by duncanpo Po

MATLAB files that fit a hidden Markov tree model (contourlet, denoise, denoising)

contourlet(pyrfilter, dirfilter, levndir, imname, imformat)

contourlet2tree(coef, dir)

contournc(nv, pyrfilter, dirfilter, nlev, imdim)

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updated 4 years ago

multimodality non-rigid demon algorithm image registration by Dirk-Jan Kroon

non-rigid 2D and 3D image registration with demon (fluid) algorithm, extended with modality transf. (transforms, nonrigid image regist..., nonrigid)

A=imresize3d(V,scale,tsize,ntype,npad)

E=strain(Ux,Uy,Uz)

I3=movepixels(I1,Tx,Ty,Tz,mode)

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updated 5 years ago

LISQ - A toolbox for the lifting scheme on 2D quincunx grids by Paul De Zeeuw

A toolbox for the lifting scheme on 2D quincunx grids and for the computation of moment invariants (transforms, lifting scheme, moment invariants)

E =extA(A, c)

HUinvariants(mass, mus)

NevilleR2Q(order)

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updated almost 6 years ago

Surfacelet Toolbox by Yue Lu

Surfacelet transform: a multiresolution transform for efficient representation of multidimensional s (transforms, directional filter ba..., surfacelet)

HourGlassDec(X, InD, OutD, HGfname, varargin)

HourGlassRec(Subs, InD, OutD, HGfname, varargin);

Meyer_sf_vkbook(x)

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updated almost 6 years ago

Lomb normalized periodogram by Christos Saragiotis

Both functions calculate the Lomb-Scargle periodogram (aka Gauss-Vanicek/Least-squares spectrum) (signal processing, earth science, transforms)

fastlomb(x,t,varargin)

lomb(x,t,varargin)

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updated 6 years ago

1D Walsh Transform by Andre

Function to generate a Walsh-Matrix one can use to do a 1D Walsh Transform (transforms, walsh, transform)

walsh(N, classname)

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updated 6 years ago

Faster 2D-Hadmard Tranform by Andre

Fast 2D-Hadamard/Walsh Transform based on Simple Matrix Vector Multiplication (transforms, hadamard transform, walsh transform)

WALSH(N, classname)

WAT2D(X, order)

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updated 7 years ago

Fast 2D Walsh-Hadamard Transform by Gylson Thomas

The function implement the 2D dyadic(Paley) ordered fast in-place Walsh-Hadamard transform. (transforms, walsh transform2d, dyadic)

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updated 7 years ago

Fast Walsh-Hadamard Transform by Gylson Thomas

The function implement the sequency(Walsh) ordered fast Walsh-Hadamard transform. (transforms, walsh transform, fast)

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updated 7 years ago

Image Rotation Correction by Amir Omidvarnia

A simple function for correcting the rotated images. (transforms, rotation correction l...)

RotationCorrection(im)

example.m

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updated almost 8 years ago

Numerical Inversion of Laplace Transforms by Housam Binous

computes numerical inverse of Laplace transforms (chemistry, physics, numerical inversion)

Fourier.m

zakian.m

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updated almost 8 years ago

natural (Hadamard) and dyadic (Paley) ordered fast Hadamard transform by Gylson Thomas

The function implement the 1D natural(Hadamard) and dyadic (Paley) ordered fast Hadamard transform. (transforms, fast hadamard transfo..., 1d)

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updated 8 years ago

Rigid body transformation for big datasets by Olivier Salvado

Rigid body transformation of a large volume of uint8 (transforms, rigid body, interpolation)

Big_Transform(V,p)

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updated 8 years ago

zoom on 2d by doublicating by Nayef Nustafa

Zoom*2 by doublicating each piont on X & Y (transforms, zoom 2d doublicating)

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updated 8 years ago

Moving Least Squares by Gabriele Lombardi

Tools that implements the Moving Least Squares algorithm to deform points and images (transforms, deformation, image deformation)

Moving Least Squares

MLSD2DTransform(varargin)

MLSD2DWarp(varargin)

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updated almost 9 years ago

Nonsubsampled Contourlet Toolbox by Arthur Cunha

Toolbox Implementing NSCT (transforms, contourlet, geometry)

atrousdec(x,fname,Nlevels);

atrousfilters(fname);

decdemo( im, option )

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updated almost 9 years ago

Laplacian Pyramid Toolbox by Minh Do

Matlab toolbox that implements the Laplacian pyramid (LP) decomposition and a new pseudo-inverse rec (transforms, laplacian pyramid, multiscale)

SNR(in, est)

filtdn(x, f, dim, extmod, shift)

imageshow(im, range)

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updated 9 years ago

Contourlet toolbox by Minh Do

Contourlet transform: an efficient and flexible multiresolution, local, and directional image ... (transforms, contourlet, wavelet)

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updated almost 10 years ago

Subsampling by Florian Jousset

Subsample an image. (transforms, subsampling, fir filter)

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updated almost 10 years ago

Integer order Hankel transform by Manuel Guizar

This routine implements Hankel transforms of integer order based on a Fourier-Bessel series. (transforms, hankel, transform)

Hankel_transform.m

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updated 10 years ago

Fast implementation of circular Hough-transform by Matthias Pfragner

A circular Hough-transform without loops. (transforms, hough, hough transform)

houghcircle2(Imbinary,r)

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updated 10 years ago

Walsh Transform(2D) by Ahmad Poursaberi

The function implements the 2D Walash Transform. (transforms, walsh transform, 2d)

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updated 10 years ago

Walsh Transform(1D) by Ahmad Poursaberi

The function implements the 1D Walash Transform. (transforms, walsh transform, 1d)

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updated 10 years ago

Gaussian Pyramid - Expand and Reduce routines by Karthik A

This contains set of routines, for the 'expand' and 'reduce' operations of Gaussian Image Pyramids. (transforms, gaussian pyramid, reduce)

expand(I, Wt)

reduce(I, Wt)

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updated 10 years ago

BWT encoder and decoder by Imran Akthar

bwtenc bwtdec (transforms, burrows wheeler trans..., bwtenc)

bwtdec

bwtenc

README.m

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updated 12 years ago

Signals, Systems, and Transforms by Leland Jackson

Companion Software (signal processing, signals, systems)

LPF2nd(zeta)

LPFbut(N)

ctc(x,y,T)

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updated 12 years ago

Signals, Systems, and Transforms, 2e by Charles Phillips

Companion Software (signal processing, signals, systems)

[ret,x0,str,ts,xts]=butlpex2(t,x,u,flag);

ex10p10.m

ex10p11.m

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