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updated 3 days ago

2D Fourier Transform of a cosine pulse using MATLAB inbuilt 2D FFT2 function. by Sathyanarayan Rao

Two dimensional cosine pulse and its Fourier transform is computed and visualized. (2d fft, 2d fourier transform, single sided frequenc...)

cosine_2d.m

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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 16 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)

Discover Ezyfit: A free curve fitting toolbox for Matlab

about_ef (Ezyfit Toolbox)

axis0 (Ezyfit Toolbox)

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updated 25 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)

AGSM Canvas

DD=myspline(D,theta)

GI=gaussianBlur(I,s)

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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)

polyfitZero example

polyfitB(x,y,degree,b)

polyfitB0(x,y,degree,b)

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updated 1 month 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_example

newtonraphson(fun, x0, options)

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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)

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

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

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

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updated 3 months ago

HDL Coder Support Package for Xilinx Zynq-7000 Platform by MathWorks HDL Coder Team

Use HDL Coder to implement algorithms on Zynq-7000 SoC ZC702 Evaluation Kit (zynq, hwsw codesign, motor control)

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updated 3 months ago

Embedded Coder Support Package for Xilinx Zynq-7000 Platform by MathWorks Embedded Coder Team

Use Embedded Coder to implement algorithms on Zynq-7000 SoC ZC702 Evaluation Kit (zynq, hwsw codesign, motor control)

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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

Fractal Dimension by Omar Al-Kadi

Generating a pixel- by pixel fractal dimension image using box counting algorithm (fractal dimension, lacunarity, image processing)

Fractals.m

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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 5 months ago

Multidimensional path-generator by Erwin Torreao Dassen

This script is a general purpose multidimensional path generator algorithm. (control design, optimization, measurement)

pathGenerator.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

Compressive Multi-spectral Demosaicing by Angshul Majumdar

Explores Group-sparse and Kronecker Compressed Sensing Techniques for Multi-spectral demosaicing (demo, image processing, signal processing)

MSscript_3channel.m

MSscript_4channel.m

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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

wevleted Image by sundus

use wavelet to reduce the image size this declared by the histogram plot (image, wavelet, histogram)

testPaper.m

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updated 7 months ago

Computational complexity by Mahmoud Al-dababseh

Computational complexity between FBMC/OQAM and OFDM (communications, statistics, mathematics)

Computational_Complexity.m

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updated 7 months ago

Image Sharpening & High boost Filtering by Sidhanta Kumar Panda

Image Sharpening & High boost Filtering of 2-D image (image processing, signal processing)

k9sharpening.m

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updated 7 months ago

Double sideband with carrier by Sidhanta Kumar Panda

Generate a Double sideband with carrier signal using this code (signal processing, image processing, communications)

dsbc.m

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updated 7 months ago

FM signal generation by Sidhanta Kumar Panda

Generate a frequency modulated signal using this code (signal processing, image processing, wireless)

fm1.m

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updated 7 months ago

Convolution by Sidhanta Kumar Panda

This program finds the linear convolution of two discrete sequences (signal processing, image processing)

exptt4.m

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