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updated 5 years ago

FFT filter - clean your signals and display results! by Shmuel Ben-Ezra

Perform Fourier transform, filter in frequency domain, reconstruct the signal. (fft, ifft, dft)

fftf(t, x, varargin)

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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 almost 9 years ago

Dynamic Time Warping by Timothy Felty

Dynamic time warping program. Calculates the similarity between 2 vectors. (audio processing, video processing, dtw)

[Dist,D,k,w]=dtw(t,r)

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updated 4 years ago

progressbar by Steve Hoelzer

Simple, efficient, and user friendly replacement for waitbar. (gui tools, example, progress)

progressbar(varargin)

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updated 7 years ago

fitellipse.m by Richard Brown

Fit ellipses to 2D points using linear or nonlinear least squares (approximation, interpolation, least squares)

FITELLIPSE : Least squares ellipse fitting demonstration

fitellipse(x, varargin)

plotellipse(varargin)

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updated 4 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 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 4 years ago

Radial Basis Function Network by Travis Wiens

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

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

[W phi]=train_rbf(X,Y,Xc,k_i,basisfunction)

[Y_int Phi_int]=rbfn_integral(Xc,X1,X2,W,k_i,basisfunction)

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updated 8 years ago

EXTENDED KALMAN FILTER example by rc reddy

An example of EXTENDED KALMAN FILTER (dsp, kalman, extended)

EKLMNFTR1(Ap,Xint_v,Uk,Qu,Vk,Qv,C,n,Wk,W,V);

EKF1.m

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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 almost 3 years ago

MIRtoolbox by Olivier Lartillot

An innovative environment, on top of Matlab, for music and audio analysis (music analysis, audio analysis, signal processing)

aiffread(filePath,indexRange)

center(x)

combinepeaks(p,v,thr)

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updated almost 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 almost 12 years ago

Synthetic Aperture Radar Signal Processing with MATLAB Algorithms by Mehrdad Soumekh

Companion Software (signal processing, synthetic aperture, radar signal processi...)

fs=ftx(s);

fs=fty(s);

s=iftx(fs);

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updated 4 years ago

Kernel PCA by Ambarish Jash

Non-linear dimension reduction using kernel PCA. (signal processing, nonlinear, kernel technique)

kernelpca_tutorial(data_in,num_dim)

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updated almost 2 years ago

PMSM simulation by Cheku Dorji

The simulink model of current controlled PMSM drive with constant torque control id=0. (simulink, automotive, control design)

PMSM_DRIVES_SIMULATION1

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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 1 year ago

Pink, Red, Blue and Violet Noise Generation with Matlab Implementation by Hristo Zhivomirov

Pink, red, blue and violet noise generation via spectral processing of white noise. (noise, measurement, signal processing)

bluenoise(N)

pinknoise(N)

rednoise(N)

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updated 6 months ago

Active geometric shape models by Quan Wang

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

AGSM Canvas

DD=myspline(D,theta)

GI=gaussianBlur(I,s)

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updated 5 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 10 years ago

Envelope1.1 by Lei Wang

A generalized function can plot the envelope of any given data. (specialized, plotting, envelope)

envelope(x,y,interpMethod)

DemoEnvelope.m

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updated almost 5 years ago

NURBS Toolbox by D.M. Spink by Paul

NURBS Toolbox by D.M. Spink re-uploaded. The previous link has broken. (approximation, bspline, interpolation)

basisfun(i,u,p,U)

bspdegelev(d,c,k,t)

bspderiv(d,c,k)

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updated almost 2 years ago

Linear Model for changing Frequency of Wind, PV, Diesel, Battery, Fuel Cell and Load Hybrid System. by Siva Malla

Modeled wind, PV, FC, Battery, Diesel and load with transfer fucntion (wind, pv, battery)

Model

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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 10 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

LiveRecording by Marcus Vollmer

Recording audio signals, live visualisation, spectrogram, save to .wav (recording, audio signal, voice)

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updated 5 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 11 years ago

LMS Algorithm Demo by Tamer Mellik

A system identification by the usage of the LMS algorithm. (system identification, lms, adaptive filter theor...)

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updated 8 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

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 1 year ago

Light Field Toolbox v0.2 by Donald Dansereau

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

...

...

...

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updated 13 years ago

central_diff.m by Robert Canfield

Calculates a numeric gradient using second-order central difference formula (approximation, interpolation, central)

central_diff( F, x )

central_diff_test.m

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updated almost 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 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 9 months ago

ECG Beat Calculation by Arun Kumar

Calculates ECG beats per minute (ecg signal, dsp, heart)

ecgbeat.m

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updated 2 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 7 months ago

Silence removal in speech signals by Theodoros Giannakopoulos

A simple method for silence removal in speech streams (signal processing, speech analysis, audio)

ShortTimeEnergy(signal, windowLength,step);

SpectralCentroid(signal,windowLength, step, fs)

detectVoiced(wavFileName,t)

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updated 6 months ago

Sound analysis with Matlab Implementation by Hristo Zhivomirov

Time and frequency analysis, measurement of the crest factor, the dynamic range, etc. (signal processing, sound analisys, not a function)

Sound_Analysis.m

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updated 5 months 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 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 1 year ago

Generalized Hurst exponent by Tomaso Aste

Generalized Hurst exponent of a stochastic variable (signal processing, finance, statistics)

[mH,sH]=genhurst(S,q,maxT)

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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 2 years ago

IMF for Bearing Fault Diagnosis by Santhana Raj

performs HHT on signal & IMF is plotted for Condition monitoring of vibration based bearing fault (signal processing, bearing fault, condition monitoring)

[imf,imf_fft]=imf_bearing(y,Fs,l)

emd(x)

findpeaks(x)

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updated 8 years ago

Scattered Data Interpolation and Approximation using Radial Base Functions by Alex Chirokov

Set of functions that can be used for interpolation and and approximation of scattered data of any d (approximation, interpolation, scattered data interp...)

rbfcheck(options)

rbfcreate(x, y, varargin)

rbfinterp(x, options)

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updated 1 month ago

Live data acquisition for real-time signal processing in MATLAB by Gabriele Bunkheila

Stream signals to and from data acquisition hardware using simple for or while loops (data acquisition, signal processing)

System Objects to Stream Live Data to and from Data Acqui...

InstallMe

DaqBasicAnalogInExample.m

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updated 1 month ago

Interpolation Utilities by Joe Henning

A variety of interpolation utilities (interpolation, piecewise interpolati..., cubic interpolation)

baryinv(x, y, xi, c)

cakima(x, y, xi)

cbezier(x, y, xi)

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updated 1 month ago

Extended DFT by Vilnis Liepins

Program EDFT produce high-resolution N-point DFT for N greater than the length of data vector. (spectral analysis, fft, dft)

Y=inedft(F,fn,tn)

[F,S,Stopit]=edft(X,N,I,W)

[F,S,Stopit]=nedft(X,tk,fn,I,W)

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updated almost 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 4 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 3 years ago

matlab code for automatic speech recognition by shahista sayyed

its a matlab code till daubechies wavelets done (signal processing, speaker recognition s...)

Voice_Rec(sample_freq)

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updated 9 months ago

Short-time Energy and Zero Crossing Rate by Nabin S Sharma

Compute the short time energy (STE) and short-time zero crossing rate (STZCR) of a signal. (signal processing, speech processing, shorttime energy)

energy(x,wintype,winamp,winlen)

sgn(x)

winconv(x,varargin)

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