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updated 9 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 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 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

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 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 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 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 12 years ago

MATLAB Record GUI by Jesse Hansen

MATLAB Record GUI: Used to record, edit, and analyze speech or other sounds. (sound, matlab gui, audio)

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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 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 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 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 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 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 17 days ago

z-Transform Demo by Oktay Alkin

3-D visualization of the z-transform. (signal processing)

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updated 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 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 2 months ago

continuous wavelet transform and inverse by jon erickson

Continuous wavelet transform (CWT) and Inverse CWT for reconstructing original signal. (cwt, inverse, time frequency)

invcwt.m

...

...

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updated 5 years ago

Wiener filter for Noise Reduction and speech enhancement by Pascal Scalart

Wiener Noise Suppressor based on Decision-Directed method with TSNR and HRNR algorithms. (signal processing, ausio processing, noisy speech enhancem...)

[esTSNR,esHRNR]=WienerNoiseReduction(ns,fs,IS)

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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 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 2 years ago

interparc by John D'Errico

Distance based interpolation along a general curve in space (interpolation, spline, linear)

interparc(t,px,py,varargin)

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updated 1 month 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 9 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 2 years ago

MATLAB/Simulink for Digital Signal Processing by Won Yang

Many MATLAB codes for Digital Signal Processing (signal processing, simulation, simulink)

B=FRS_nr_realization(Gd,N,sym,ftype)

D=dctmtx_my(M)

DCT2_blk(u,block_size)

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updated 6 years ago

Simple Audio Editor by Navan Ruthramoorthy

This is a simple audio editor GUI to read, write, cut, copy, paste, filter and analyze audio data. (audio processing, video processing, audio)

RecordFromMic

getFromMATLABVarNameandFs

getToMATLABVarNameandFs

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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 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 3 years ago

Digital Modulation:ASK, PSK, FSK by Nikesh Bajaj

ASK, PSK, FSK modulation and BER vs SNR calculation (ask, psk, fsk)

ASK_FSK_PSK(msglen)

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updated 17 days ago

Laplace Transform Demo by Oktay Alkin

3-D visualization of the Laplace transform. (signal processing)

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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 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 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 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 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 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 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 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 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 3 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 3 months ago

Gaussian smoothing filter by James Conder

Function to smooth a time series using a Gaussian filter. (gaussian filter, signal processing, smoothing)

gaussfilt( t,z,sigma)

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updated 10 months ago

Inverse Short-Time Fourier Transformation (ISTFT) with Matlab Implementation by Hristo Zhivomirov

Time-Frequency resynthesis via Inverse Short-Time Fourier Transformation (ISTFT) (signal processing)

istft(stft, h, nfft, fs)

stft(x, wlen, h, nfft, fs)

Resynthesis.m

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updated 30 days ago

Computational Geometry Toolbox by George Papazafeiropoulos

Convex hull, mesh generation, Delaunay triangulation, Voronoi diagram and other algorithms. (bounding box, concave, convex)

Bounding box of a random point set in 2-dimensional space

Bounding box of a random point set in 3-dimensional space

Bounding box of a random point set in 4-dimensional space

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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 19 days ago

Carrier & Symbol Timing Recovery for N QAM by Dick Benson

This model implements a contemporary symbol timing and carrier recovery scheme for 2-256 QAM. (timing recovery, qam, carrier)

QAMx_Synchronization_DT.mdl

QAMx_Synchronization_Mixed_CT_DT.mdl

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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 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 4 years ago

Speech Recognition by ambavi patel

speech recognition using correlation (signal processing, bhanuprakash0501hotma...)

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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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