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updated 1 month ago

Gabor Feature Extraction by Mohammad Haghighat

This program generates a custom Gabor filter bank; and extracts the image features using them. (image processing, computer vision, pattern recognition)

gaborFeatures(img,gaborArray,d1,d2)

gaborFilterBank(u,v,m,n)

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updated 11 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 1 month 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)

CDT(ns,DatabasePath,ff,escImages)

Comparision()

Graphs()

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updated 1 year ago

Fast 2D peak finder by nate

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 almost 3 years ago

JPEG Compression (DCT) by Vinay Kumar Tadepalli

JPEG compression using Discrete Cosine Transform Technique (image processing, simulation, signal processing)

dct1.m

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updated 17 days ago

Graph Cut for image Segmentation by Amarjot

The code segments the grayscale image using graph cuts. (image processing, signal processing, segmentation)

graphcuts(I,pad,MAXVAL)

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updated 9 months 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 6 months ago

Chebfun V4 by Chebfun Team

Numerical computation with functions instead of numbers. (numerical analysis, interpolation, approximation)

A greedy algorithm for choosing interpolation points

A keyhole contour integral

A parameter dependent ODE with breakpoints

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updated almost 6 years ago

Image segmentation & Extraction by Diego Barragán

This program segments and extracts objects from an image. (image processing, signal processing, templates)

Imag_seg_ex.m

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updated almost 3 years ago

The INface toolbox v2.0 for illumination invariant face recognition by Vitomir Struc

Photometric normalization techniques used for achieving illumination invariant face recognition. (image processing, face recognition, biometrics)

DCT_normalization.m

adaptive_nl_means_normalization.m

adaptive_single_scale_retinex.m

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updated 19 days ago

Radial Basis Function Network by Travis Wiens

Simulates and trains Gaussian and polyharmonic spline radial basis function networks. (radial basis function, rbf for suren, radial basis function...)

rbf_integral(Xc,X1,X2,k_i,basisfunction)

rbfn_integral(Xc,X1,X2,W,k_i,basisfunction)

sim_rbf(Xc,X,W,k_i,basisfunction)

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updated 2 years ago

CoSaMP and OMP for sparse recovery by Stephen Becker

Orthogonal Matching Pursuit (OMP) and Compressive Sampling Matched Pursuit (CoSaMP). (omp, cosamp, compressed sensing)

CoSaMP( A, b, k, errFcn, opts )

OMP( A, b, k, errFcn, opts )

test_OMP_and_CoSaMP.m

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updated 8 years ago

Lagrange Interpolator Polynomial by Dan Ellis

Find the polynomial (defined by its coefficients) passing through a set of points. (approximation, interpolation, lagrange interpolator...)

Lagrange Interpolation Polynomial

lagrangepoly(X,Y,XX)

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updated 4 months ago

Peak Fitter by Tom O'Haver

Command-line peak fitter for time-series signals. Version 5.7, September, 2014 (chemistry, curve fitting, decomposition)

[FitResults,LowestError,baseline,BestStart,xi,yi,BootResu...

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updated almost 2 years ago

Matalb and OpenCV by BIREM Merwan

How to Connect Matlab with OpenCV to use the different functions offered by OpenCV using mex-files. (image processing, signal processing)

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updated 5 years ago

Fuzzy c-means segmentation by Santle Camilus

This program segments an image into 2 partitions using standard Fuzzy k-means algorithm. (clustering, fuzzy k means cluster..., image segmentation)

fuzzycmeans.m

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updated 1 month ago

Zernike Moments by Amir Tahmasbi

MATLAB Code for the Fast Calculation of Zernike Moments of order n and repetition m on NxN images. (image processing, physics, mathematics)

Zernikmoment(p,n,m)

radialpoly(r,n,m)

Zernike_main.m

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updated 2 years ago

Envelope Detction for Signal Analysis by Santhana Raj

Computes the envelope of the signal by two methods: 1.LPF method 2.Hilbert Transform (image processing, signal processing, envelope detection)

y=envelope(signal,Fs)

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updated almost 5 years ago

Image segmentation using statistical region merging by Sylvain Boltz

Very simple and fast image segmentation code using statistical region merging. (image processing, image segmentation, clustering)

[maps,images]=srm(image,Qlevels)

srm_getborders(map)

srm_imgGrad(I)

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updated 4 years ago

Feature Selection using Matlab by Dimitrios Ververidis

Select the subset of features that maximizes Correct Classification Rate. (demo, gui, signal processing)

...

BayesClassValidationSet(...

CalcInfoLoss(D, N, Crossval_OR_Resubstit)

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updated almost 3 years ago

Ridgelet and Curvelet first generation Toolbox by SANDEEP PALAKKAL

Matlab codes for first generation curvelet and ridgelet transforms. (ridgelet, curvelet, image denoising)

addwgn(x,snr)

cart_2_rectopolar(xr)

cell_cardinality( x )

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updated 1 year ago

Simulink Support for Kinect by Takashi Chikamasa

Simulink Support for Kinect is a set of Simulink blocks interfaced with OpenNI and Kinect SDK. (image processing, simulation, simulink)

checkBlockSingleton(model, maskType)

checkDeviceBlock(model, maskType)

checkIMAQBlock(model, blk)

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updated 12 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 1 year ago

Histogram distances by Boris Schauerte

Implementation of some commonly used histogram distances (compatible with the pdist interface) (image processing, signal processing, statistics)

d=chi_square_statistics(XI,XJ)

d=histogram_intersection(XI,XJ)

d=jeffrey_divergence(XI,XJ)

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updated 1 year ago

Speckle Noise Reduction in Ultrasound Images by Ashish Meshram (Meet)

This project implements various filters for Speckle Noise Reduction in Ultrasound Images. (image processing, wavelet, butterworth filter)

GetFilePath()

MetricsMeasurement.m

NSRFilters.m

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updated 3 years ago

Color Image Compression / Decompression by using Hybrid Wavelet Transform and Cosine Transform by Mohammed Siddeq

Color Image Compression CIC2011 , by using Discrete Wavelet Transform and Discrete Cosine Transform (image processing, signal processing, communications)

ColorData=Code_Color_Image_DWT_DCT(Im,Quantize,Save_Path,...

DeIM=Decode_Color_Image_DWT_DCT(Load_Path)

H=Image_code_DWT_DCT(Im,Factor,Save_Path,Wave_Name)

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updated almost 6 years ago

COUNT OF COINS by Diego Barragán

COUNT OF COINS USING IMAGE PROCESSING TOOLBOX. (image processing, signal processing)

count_of_coins.m

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updated 4 years ago

2D - 2D Projective Homography (3x3) Estimation by SasiKanth

This function estimates 2D-2D projective homography between two images. (homography, image processing, signal processing)

homography( i1, i2)

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updated 25 days ago

deprecated -- Light Field Toolbox v0.2 -- v0.3 now available by Donald Dansereau

A set of tools for working with light field (aka plenoptic) imagery in Matlab (toolbox, light field, plenoptic)

compute_extrinsic_init.m

compute_extrinsic_refine.m

LFBuildLenseletGridModel( WhiteImg, GridModelOptions )

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updated 13 years ago

Lagrange polynomial interpolation by Carlo Castoldi

Lagrange polynomial interpolation (approximation, interpolation, lagrange)

y=lagrange(x,pointx,pointy)

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updated 1 month ago

Gabor Wavelets by Mohammad Haghighat

This program generates a custom Gabor filter bank; and extracts the image features using them. (image processing, computer vision, pattern recognition)

gaborFeatures(img,gaborArray,d1,d2)

gaborFilterBank(u,v,m,n)

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updated 2 months ago

Fast 'n easy smoothing by Damien Garcia

SMOOTHN allows automatized and robust smoothing in arbitrary dimension w/wo missing values (smooth, curve fitting, image processing)

smoothn(varargin)

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updated almost 6 years ago

smooth2a by Greg Reeves

Smooths a 2D matrix using a mean filter over a user-defined rectangle. Ignores and preserves NaNs. (2d, approximation, interpolation)

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updated 2 years ago

barrel and pincushion lens distortion correction by Jaap de Vries

I = LENSDISTORT(I, k)corrects for radially symmetric distortions (image processing, mathematics, optics)

lensdistort(I, k, varargin)

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updated almost 2 years ago

PERFORMANCE ANALYSIS OF Z-SOURCE INVERTER FED INDUCTION MOTOR DRIVE by Amit Tiwari

THIS SIMULINK MODEL HAS BEEN DESIGNED FOR ANALYSIS OF A Z SOURCE INVERTER FED THREE PHASE IND. MOTOR (control design, measurement, simulink)

zinv

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updated 10 months 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 year ago

Gray-scale image segmentation using normalized graphcuts by Mohamed Athiq

Textbook implementation of Normalized graph cut segmentation of gray-scale or intensity images (signal processing, image processing, mathematics)

graphcuts.m

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updated 7 years ago

Newton-Raphson by Keerthi venkateswara Rao

Newton-Raphson method for all real roots of the polynomial. (approximation, interpolation, iterative)

coeff_derivative=derivate(coeff_function)

coeff_second=syn_division(coeff_function,fun_root_new)

newton(coeff_function,initial_guess,error_tolerance,max_i...

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updated almost 5 years ago

fourier descriptor by michael scheinfeild

describe shape using fourier coefficients (fourier descriptor, shape, shape classification)

[new_indeces]=find_close_indeces(im_in)

make_fft_sec(image_edged,ncoef)

test_fourier.m

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updated 23 hours ago

Chebfun by Chebfun Team

Chebfun is an open-source package for numerical computation with functions to 15-digit accuracy (approximation, interpolation, quadrature)

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updated almost 2 years ago

Traffic Warning Sign Recognition Matlab Code by Muhammad Ammad

Traffic Warning Sign Recognition Matlab Code using matlab demo from the matlab 7.5 in video processc (blob analysis, detection, recognition)

main

x=blobAnalysis(a)

Yield.avi

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updated 1 year 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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updated almost 5 years ago

Linear Regression with Errors in X and Y by Travis Wiens

Calculates slope and intercept for linear regression of data with errors in X and Y. (mathematics, measurement, statistics)

ellipse(Xc,Yc,dX,dY,N_p)

york_fit(X,Y,sigma_X,sigma_Y, r)

demo_york.m

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updated 1 year ago

Performance Analysis of Z-source Inverter Fed Induction Motor Drive by Amit Tiwari

THIS MODEL IS EQUIPPED WITH CONSTANT BOOST CONTROL USING THIRD HARMONIC INJECTION. (communications, gui, control design)

ZINV1

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updated almost 4 years ago

Pulse Code Modulation by Nikesh Bajaj

This program do all three process of PCM Sampling, Quantization and Encoding. (pcm, analog to digital, communications)

[y Bitrate MSE Stepsize QNoise]=pcm(A,fm,fs,n)

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updated almost 2 years ago

Frequency domain filtering for grayscale images by Mohamed Athiq

Simple Matlab implementation of frequency domain filters on grayscale images (image processing, mathematics, signal processing)

bhp(im,thresh,n)

blpf(im,thresh,n)

ghp(im,thresh)

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updated 1 year 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 3 years ago

Bi dimensional Emperical Mode Decomposition (BEMD) by SasiKanth

This function computes the 2D IMFs (first 3) for an Input Image. (signal processing, image processing, hilbert)

bemd.m

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updated 1 year 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 almost 2 years ago

Contemporary Communications Systems Matlab Files by Omar Ruiz

Matlab Files in this book (signal processing, simulink, simulation)

[M,m,df]=fftseq(m,ts,df)

[Rx]=Rx_est(X,M)

[X]=gaus_mar(X0,rho,N)

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