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updated 2 hours ago

2-D Fast DOST Decompotion and Reconstruction by Yanwei Wang

This is the 2-D Fast DOST Decomposition and reconstruction. The computational complexity is O(NlnN) (image processing, signal processing, mathematics)

DOST_1D_CON(D_input)

DOST_1D_DEC(S_input)

DOST_2D_CON(DOST_2D_Coeff)

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updated 15 days ago

PCA Based Face Recognition System Using ORL Database by Shujaat Khan

This Package implements 'Eigenface' PCA based face recognition technique. (appearance based face..., eigenface, face recognition)

Image_Projection(T,M,Eigenfaces )

PCA_Core(Tr,M,dimensions)

PCA_NEW(Tr,Ts,TrNum,TsNum,dimensions,sno)

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updated 15 days ago

RViewer by Tony Davis

Image Viewer with Interpolation on Zoom, Multiple Sync (image, display, interpolation)

rview

rviewer

Contents.m

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updated 17 days ago

Normalize columns of matrix to unit lenght by Kamlesh Pawar

Usage : Takes 2D-matrix x and returns y such that each columns of y have unit length (signal processing, image processing, image analysis)

normalize_column(x)

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updated 24 days ago

EzyFit 2.42 by Frederic Moisy

A free curve fitting toolbox for Matlab (approximation, interpolation, curve)

[eqml,param]=eq2ml(eq,xvar)

delseldata

findword(inputstr,delim)

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updated 26 days ago

Active geometric shape models by Quan Wang

The active geometric shape model is a novel approach for fitting a geometric shape in images. (image processing, mathematics, optimization)

DD=myspline(D,theta)

GI=gaussianBlur(I,s)

R=correctCurve(r,sigma,iter)

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updated 1 month ago

Feature Mutual Information (FMI) Image Fusion Metric by Mohammad Haghighat

A non-reference image fusion metric based on mutual information of image features (image fusion, metric, image fusion metric)

fmi(ima, imb, imf, feature, w)

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updated 1 month ago

Fast Gradient Vector Flow (GVF) by Quan Wang

This package implements the Gradient Vector Flow (GVF) in C++/MEX. (image processing, image segmentation, pattern recognition)

GI=gaussianBlur(I,s)

demo.m

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updated 1 month ago

Matrix Difuse Interpolation by David Pineda

Can correct some images with errors (image, interpolation, difuse)

M=interpolacion_matrix(V,x,y, b,c,p,q,factor, factor_inte...

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updated 1 month ago

polyfitZero by Mark Mikofski

Fit polynomial to data, forcing y-intercept to zero or arb. value and slope to zero or arb. value (mathematics, modeling, data exploration)

polyfitB(x,y,degree,b)

polyfitB0(x,y,degree,b)

polyfitBM(x,y,degree,b,m)

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updated 2 months ago

Abel Inversion Algorithm by Carsten Killer

Fourier-based reconstruction of an unknown radial distribution assuming cylindrical symmetry. (image processing, signal processing, physics)

abel_inversion(h,R,upf,plot_results,lsq_solve)

compute_expansion( X,upf,R )

generate_test_data(~)

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updated 2 months ago

Peak Fitter by Tom O'Haver

Command-line peak fitter for time-series signals. Version 5, February 2014 (chemistry, curve fitting, decomposition)

[FitResults,LowestError,BestStart,xi,yi,BootResults]=peak...

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updated 2 months ago

Zero crossing finder by Aubai

This function is used to recognize the zero corssing of an input signal (mathematics, measurement, optimization)

Zeros_finding_Rowdata_final(y,x,f,tol)

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updated 2 months ago

Easy 'n fast smoothing for 1-D to N-D data by Damien Garcia

SMOOTHN allows automatized and robust smoothing in arbitrary dimension w/wo missing values (image processing, signal processing, statistics)

smoothn(varargin)

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updated 2 months ago

Discrete Fourier Transform over Hexagonally Sampled Data by UJJWAL

Provided codes implement the DFT and IDFT for hexagonal lattices (signal processing, image processing)

hex_dft(signal_vec)

hex_idft(dft_vec)

map_spatial(hex_add)

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updated 3 months ago

Newton-Raphson solver by Mark Mikofski

Yet another solver that uses the backslash function to solve a set of non-linear equations. (mathematics, optimization, data exploration)

newtonraphson(fun, x0, options)

newtonraphson_example

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updated 3 months ago

Code for generating complex valued Noiselet matrix by Kamlesh Pawar

Code for generating complex valued Noiselet matrix (signal processing, image processing)

generate_noiselet_recur(n)

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updated 3 months ago

Code for generating Haar matrix by Kamlesh Pawar

Code for generating Haar matrix (signal processing, image processing, coding theory)

[Hr]=generate_haar(N)

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updated 3 months ago

Moving RMS Calculation by Aubai

mean-RMS mfile just like the Simulink block (signal processing, measurement, matlab)

mvrms_mfile_simulink(t,y,f1,figures)

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updated 3 months ago

Regularization Kaczmarz Tools Version 1.0 for Matlab by Andrey Ivanov

Regularization Column version of Kaczmarz algorithmfor solving ill-posed systems (iterative projection ..., incorrect problems, regularized solution)

columnkaczmarz(A,b,K,x0,options)

randcolumnkaczmarz(A,b,K,x0,options)

Convergence of the regularized form of the Column-Kaczmar...

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updated 3 months ago

Multi Spectral Demosaicing algorithms by Hemant Aggarwal

Implementation of two multispectral demosaicing algorithms. (image processing, signal processing)

X=myTrain(img)

Xestimated=BTESinterpolate(x)

[img raw umsf]=UMSF(img)

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updated 3 months ago

Diffusion gradient vector field in 3D by Khaled Khairy

Generate in 3D the diffusion gradient vector field as in Xu and Prince 1998 (image processing, signal processing, mathematics)

dgvf_calc(I, niter, miu, dt, dx, dy, dz)

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updated 4 months ago

Backtracking Search Optimization Algorithm by PINAR CIVICIOGLU

A new swarm-based global optimization algorithm for real valued numerical optimization problems. (optimization, signal processing, image processing)

FoxHoles(x,mydata)

[fname,fnc,low,up,dim]=setttingOfBenchmarkFnc(i)

ackley(x,mydata)

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updated 4 months ago

gapolyfitn by Richard Crozier

optimises the functional form of a multi-dimensional polynomial fit to model data (optimization, linear regression, modelling)

GenerateNewTerm(vars, maxPower, poly, maxLoops)

HasTerm(p1, p2, newTerm, vars)

PolyFitScore(polyVec, polyStruct)

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updated 4 months ago

Non-Redundant Shift-Invariant Complex Wavelet Transform by Reshad Hosseini

2 m-file functions for applying complex wavelet and inverse complex wavelet transforms. (complex, wavelet, shiftinvariance)

[d,offset]=extensiontype(kin)

[yout,Sizes]=CWT_downcoef(x,levels,dim)

example

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updated 5 months ago

Contour detection by CORF operator by George Azzopardi

The CORF contour operator is based on a computational model of a simple cell in visual cortex. (edge detection, contour detection, visual cortex)

CORF(I, sigma, t)

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updated 5 months ago

diffe by Marco Borges

euclidian differentiation (diff, differential equation..., gradient)

diffe(x,range)

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updated 5 months ago

Inpaint over missing data in 1-D, 2-D, 3-D,... N-D arrays by Damien Garcia

Y = INPAINTN(X) computes the missing data in the N-D array X. (inpaint, griddatan, interpolation)

inpaintn(x,n,y0,m)

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updated 6 months ago

Optimally Oriented Flux (OOF) for 3D Curvilinear Structure Detection by Max W.K. Law

Optimally Oriented Flux curvilinear structure descriptor (image processing, signal processing, curvilinear)

eigenvaluefield33( a11, a12, a13, a22, a23, a33)

oof3response(image, radii, options)

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updated 6 months ago

Reading sorting csv special files by Aubai

Use this file to read csv files with semicolon ';' (signal processing, statistics, measurement)

csv_read(folder,filetype,delimiter,headerlinesIn)

csv_read1(folder,filetype,delimiter,Loops)

Test.m

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updated 6 months ago

Group Object Structure and State Estimation with Evolving Networks and Monte Carlo Methods by Lyudmila Mihaylova

Matlab code (aerospace, automotive, communications)

PF_MCMC_MH(xParticle_pf,xParticlePrec,meas_vec_k,sensors,...

PF_prediction(xParticle_pf, type_model)

PF_weights(particlePred_pf,meas,sensors,meas_type)

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updated 6 months ago

Image(or matrix) rotation and scaling function by Disi A

This function takes an image, scales it and rotates it by theta (radian, rigid motion) (image processing, mathematics, signal processing)

imTransform(img,dtheta,scale,interpMethod,padding)

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updated 6 months ago

Fast 2D peak finder by natan

Find local maxima \ peak positions in noisy 2D arrays (peakfind, peak, local maxima)

[cent, varargout]=FastPeakFind(d, thres, filt ,edg, res, ...

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updated 6 months ago

Droplet Video Proccessor - code 2 of 3 by Matthew Moynihan

This code takes a video of droplets made in a T-Junction and turns it into a sawtooth signal. (microfluidics, tjunction, emulsions)

BlackOut(Image, rect, BLKrect, val)

Sizer(videoBlock, dim, FilterStruct)

videoInput(vidObj)

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updated 6 months ago

Two dimensional window generator (2D window) by Disi A

This function creates a two-dimentional window that can be used for a matrix or image. (image processing, signal processing, mathematics)

w=window2(N,M,w_func)

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updated 6 months ago

Fresnel integral wrapper function by Disi A

This function computes the Fresnel integral for a given x value(vector). Default tolerance is 1e-6 (image processing, signal processing, mathematics)

[Cx,Sx]=fresnel_int(x,tol)

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updated 6 months ago

Locally Adaptive Kernel Density Estimation by Hideaki Shimazaki

Kernel density estimation with bandwidths locally adapted to data. (statistics, bandwidth, kernel)

sshist(x,N)

sskernel(x,tin,W)

ssvkernel(x,tin)

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updated 6 months ago

Droplet Video Proccessor - code 1 of 3 by Matthew Moynihan

This code processes video of droplet production and does statistics on each droplet made. (video processing, droplets, biotech)

BWSizerA(videoBlock, dim, fStruct)

BlackOut(Image, rect, BLKrect, val)

findFilterNumA(I, rect)

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updated 7 months ago

Free-space prapagation function using Huygens spherical convolution by Disi A

Given a certain field information at input plane, we can predict any field of view at output plane (optics, physics, simulation)

[g2]=ConvProp(g1,dx1,dx2,z,Nx2,lambda)

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updated 7 months ago

goldensection.m by Aamir Alaud Din

Find optimal point of a single variable function using golden section search. (aerospace, automotive, biotech)

goldensection(f,a,b,uncertain)

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updated 7 months ago

correlation confiscation by ahmed majeed

to find the correlation coefficient between carves (image processing, signal processing, mathematics)

rr=cor(yyn,yon)

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updated 7 months ago

PV module calculater by Aubai

This m.file is a simulation for the photovoltaic Modules. (statistics, optimization, measurement)

PV_Module_Simulator_Function(G,T_amb)

Testing.m

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updated 7 months ago

Flicker Calculater by Aubai

This folder calculate flicker values according to the IEC-61400-21-15. (signal processing, simulation, control design)

Flicker_Caclulation_function (endval,endval1,Sn,Sk,n,Un,F...

IEC_Analysis_Function_Matlab_2007(U1,U2,U3,I1,I2,I3,U1_ti...

flicker_Calculation_complete (j,i,n,Sk,Sn,Alpha,Un,Kp,Ki,...

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updated 7 months ago

secant.m by Aamir Alaud Din

Find the root of an equation using secant's method (aerospace, automotive, biotech)

secant(f,xo,x1,epsilon)

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updated 7 months ago

newton.m by Aamir Alaud Din

Find the root of an equation using newton's method (aerospace, automotive, biotech)

newton(f,g,xo,epsilon)

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updated 7 months ago

Frequency Calculater by Aubai

This function is used to extract the frequency of the input signal (measurement, optimization, signal processing)

Frequency_Calculation_Function(Singal,time)

Zeros_finding(y,x)

Testing_Frequency.m

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updated 7 months ago

Create a 3-Way array from excel files by Aamir Alaud Din

The program reads data from excel files and writes a three way data array (biotech, communications, finance)

prepare4mXLSX

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updated 7 months ago

Bilinear interpolation of an image or matrix by Disi A

This function performs bilinear interpolation for a given image or matrix at any location (image processing, signal processing, optimization)

interVal=interpImg(img,yx,zpad)

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updated 7 months ago

IEC 61000-4-7 for Harmonics Calculations by Aubai

This file gives you the ability to calculated Harmonics (mathematics, statistics, signal processing)

Fast_Harmonics(x,fs,duration)

Fast_Harmonics_1(x,fs,duration)

IEC_Harmonics_final(f,Vn,Inom,U1,U2,U3,I1,I2,I3,U1_time,U...

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updated 7 months ago

Differential Search Algorithm: A modernized particle swarm optimization algorithm by PINAR CIVICIOGLU

DSA is a modernized particle swarm optimization algorithm. (simulation, optimization, statistics)

ds(method,fnc,mydata,size_of_superorganism,size_of_one_cl...

out=circlefit(X,mydata)

out=weierstrass(X,str)

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