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updated 5 months ago

fourierShapeDescriptor.zip by Weicheng Kuo

Fourier shape descriptors for simple binary region (tutorial, image processing, geometry)

B=fourierShapeDescriptor(A,r)

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updated 6 months ago

Convolutive BSS by Reju VG

Underdetermined Convolutive Blind Source Separation via Time-Frequency Masking (blind source separati..., signal processing, convolutive bss)

Mask_by_Kmeans_on_theta(theta,Nc)

TF_domain_BSS(mixture,K,ovlp,Nsources,ByKmeans)

U=solve_permutation_by_kmeansCorr_construct_output(MASK,Y...

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updated 6 months ago

Mult&T by Franklin Pineda

Realizations and Control of Multivariable Linear Systems. (control design)

[A B C D T]=hoform(Gt,W)

[A B C D]=lcfform(Gt)

[A B C D]=lmpf2ss(D1,N)

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updated 7 months ago

ECC image alignment algorithm (image registration) by Georgios Evangelidis

This is a Matlab implementation of the ECC image alignment (image registration) algorithm. (image alignment, image registration, gradientbased registr...)

ecc(image, template, levels, noi, transform, delta_p_init)

image_jacobian(gx, gy, jac, nop)

spatial_interp(in, warp, str, transform, nx, ny)

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updated 7 months ago

Interpolation of a signal with Matlab Implementation by Hristo Zhivomirov

Interpolation in the time domain via zero-padding in the frequency domain. (signal processing)

interpolate(x, intfact)

example.m

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updated 7 months ago

percentile_level.m by Ernesto

N%-percentile level of a wavefile using F,S or I temporal constants and A, C, Z weighting networks (acoustics, noise measurement, percentile levels)

percentile_level(x,p,tau,w,N,Fs)

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updated 7 months ago

Calibrated Spectral Analysis by Edward Zechmann

Simple Fourier Spectral Analysis of sound pressure time record. (spectral analysis, sound, sound pressure)

ACdsgn(Fs)

ArgStruct=parseArgs(args,ArgStruct,varargin)

P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,p...

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updated 7 months ago

MSD Toolbox by Ahmed Shahein

Multi-stage decimation filter design and optimization (fir, fir filter, polyphase)

BubbleSort(x)

CICCompensationFilter(N, R, Fs)

CICFilter(M, N, R, Fs, Data)

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updated 7 months ago

LTE Cell Search (from A/D samples to PBCH MIB decoding) by Xianjun Jiao

Decode TDD/FDD LTE PBCH MIB message from 1.92Msps A/D samples. (lte tdlte sdrsoftware...)

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updated 9 months ago

Real Time Microphone and Camera data acquisition and audio-video processing by Theodoros Giannakopoulos

This Matlab-code is a demo for real-time audio and image processing. (audio processing, video processing, camera)

realTimeMic(duration, nBlocks, useVideo)

zcr(signal,windowLength, step, fs);

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updated 9 months ago

Matlab Audio Analysis Library by Theodoros Giannakopoulos

Companion material for the book "Introduction to Audio Analysis, A MATLAB approach" (audio analysis, signal processing, audio classification)

...

...

...

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updated 9 months ago

Points and Tangents by Marcelo Cicconet

Returns a list of pixels with tangents and corresponding magnitudes. (morlet, wavelet, edges)

ang(cx,sx)

coefficientslist(I,nangs,stretch,scale,hopsize,halfwindow...

coefficientsmatrix(I,nangs,stretch,scale,hopsize,halfwind...

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updated 10 months ago

melfilter by Pierce Brady

generates a mel filter bank for a given frequency vector (mfcc, mel frequency, mel filter bank)

melfilter(N,FrequencyVector,hWindow)

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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 10 months ago

Signal Processing with MATLAB Webinar by Kirthi Devleker

Contains code Snippets used in the Webinar (signal processing)

delayCompensationPlot( tn,xn,xfilter, xfiltfilt)

plotEKGPSD(varargin)

plotSig( num, sigData, titleString )

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updated 10 months ago

Time-Frequency Analysis of Non-Stationary Signals with Matlab Implementation by Hristo Zhivomirov

Time-frequency analysis of non-stationary signals in time, frequency and time-frequency domain (signal processing, spectral analysis)

spectrum(x, fs, varargin)

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

Time_Frequency_Analysis.m

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updated 10 months ago

rtl-sdr: multi-dongles based flexible spectrum scanner by Xianjun Jiao

Multi-dongles scanner with configurable parameters: start-end frequency, RBW, num of dongles, etc. (rtlsdr, software defined radi..., spectrum scanner)

raw2iq(a)

set_freq_tcp(tcp_obj, freq)

set_gain_tcp(tcp_obj, gain)

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updated 10 months ago

rtl-sdr: multi-dongles based GSM FCCH scanner by Xianjun Jiao

Multi-dongles parallel GSM FCCH scanner to help you find GSM broadcasting carrier quickly! (rtlsdr, rtl_tcp, gsm)

FCCH_coarse_position(s, decimation_ratio)

move_fft_snr_runtime_avg(s, mv_len, fft_len, th)

raw2iq(a)

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updated 11 months ago

Image Denoising based on Non Local-means Filter and its Method Noise Thresholding by Shreyamsha Kumar B. K.

Image details that are removed by NL-means filter is added back after wavelet thresholding (non localmeans filter, bilateral filter, method noise)

[g_all, vv_all]=vifsub_est_M(org,dist, subbands, M);

[ssarr, l_arr, cu_arr]=refparams_vecgsm(org,subands,M)

bayesthf(y,noise_var)

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updated 11 months ago

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

Time-Frequency analysis via Short-Time Fourier Transformation (STFT) (signal processing, spectral analysis)

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

example.m

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updated 11 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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updated 11 months ago

choose 2 fwav file from database by su

I only want to choose 2 wav file from path out of 10 wav file. (dsp, audio processing, signal processing)

out=load_database();

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updated 12 months ago

Trainable COSFIRE filters for keypoint detection and pattern recognition by George Azzopardi

A COSFIRE filter detects features or patterns of interest, e.g. traffic signs in complex scenes. (cosfire, keypoint, feature)

COSFIRE_Application(example)

Gabor(img, lambda, aspectratio, bandwidth, orientation, s...

Parameters(type)

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updated 1 year ago

Two-dimensional trilateral filter by Pekka Astola

Filters a grayscale image with the trilateral filter by P. Choudhury and J. Tumblin (trilateral filter, bilateral filter, filtering)

BilateralGradientFilter(...

DetailBilateralFilter(inputImage,adaptiveRegion,...

buildMinMaxImageStack(gradientMagnitude,maxLevel)

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updated 1 year ago

Continuous Sound and Vibration Analysis by Edward Zechmann

This program analyzes sound and vibrations data using metrics for continuous noise and vibrations. (dsp, sound, vibrations)

ACdsgn(Fs)

ArgStruct=parseArgs(args,ArgStruct,varargin)

D=Data

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updated 1 year ago

MatLab Solutions: "Introduction to Digital Signal Processing: A Computer Laboratory Textbook". by Ilias Konsoulas

These files are the MatLab solutions of exercises contained in the above DSP lab textbook. (dsp, digital signal proces..., discrete fourier tran...)

AD_DA(x,Xmin,Xmax,Levels)

conv_DHT(x,y)

conv_DHT2(x,h)

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updated 1 year ago

Image fusion based on pixel significance using cross bilateral filter by Shreyamsha Kumar B. K.

Fuses multifoucs and multispectral images by weighted average using the weights computed from CBF. (image fusion, pixel significance, multifocus)

[QABF,LABF,NABF,NABF1]=objective_fusion_perform_fn(xrcw,x)

[gv gh]=sobel_fn(x)

[hist_out]=imhist_fn(x)

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updated 1 year ago

Analog / Mixed Signal Examples by Dick Benson

Extensive collection of examples for analog and mixed signal design work. (dsp, circuit, rf)

[Out1,Out2]=qsynth(Action,In1,In2)

analyze_BPF(Lval,Cval,Z0)

curveintersect.m

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updated 1 year ago

Harmonic Wavelet based ISAR Imaging by Shreyamsha Kumar B. K.

ISAR Imaging using Harmonic Wavelets (inverse synthetic ape..., crossrange resolution, range resolution)

hammwin(N)

hammwin(N)

p=plots(x,y,z,img)

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updated 1 year ago

ECG Signal compression by Ashish Meshram (Meet)

Implementation of ECG signal compression using Amplitude Thresholding compression (ecg signal, signal processing, savitzkygolay filteri...)

atc.m

testatc.m

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updated 1 year ago

Gabor filtering on an image by Deepak Kumar Rout

Application of gabor filter on image (gabor filter, image processing, image)

gb=gabor_fn(sigma,theta,lambda,psi,gamma)

gabor_program.m

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updated 1 year ago

Tests against the null hyptothesis of whiteness by Hanan Shteingart

Tests whether a given signal is white (delta function in autocorrelation) (whiteness, random, noise)

white_test(x, maxlag, alpha)

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updated 1 year ago

Two-step method by Jacek Urbanek

Instantaneous frequency (IF) estimation based on Two-step method (instantaneous frequen..., rotational speed esti..., spectrogram)

IF=two_step_IF(x,fs,win,df,overlap,start,tol)

spectrogram_JU.m

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updated 1 year ago

Content Based Image Retrieval by Chez

Simple content based image retrieval for demonstration purposes. Either using knn or classification (image retrieval, content based image r..., classification)

L1(numOfReturnedImages, queryImageFeatureVector, dataset)

L2(numOfReturnedImages, queryImageFeatureVector, dataset,...

[obj, overall]=confMatPlot(confMat, opt)

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updated 1 year ago

Modulation Intensity Distribution - GUI by Jacek Urbanek

Software calculates MID together with its integrated version (IMID) (cyclostationarity, modulation intensity ..., mid)

Edit1_value_f1(hObject,handles)

Edit1_value_f2(hObject,handles)

On_IMID_Start(handles)

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updated 1 year ago

test periodicity by Hanan Shteingart

Test for signal periodicity using Fisher's g-statistics (see references below) (periodicity, gstatistics, fisher)

test_periodicity.m

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updated 1 year ago

Multi-Scale Edge Detection by Shan

Multi-Scale Edge Detection with Gaussian and Laplacian Pyramids (edge detection, gaussian pyramid, laplacian pyramid)

[EdgeDecision, var]=funcVarianceMapMod(inputImage, row, c...

[varianceImg, timeTaken]=funcVarianceMap(inputImage, wind...

convolve(I, F, str)

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updated 1 year ago

Bregman Cookbook by Jerome Gilles

This toolbox provides signal/image/3D processing based on Bregman Iterations (bregman, l1, sparse)

R=AddCurveletArray(A,B)

R=AddFrameletArray(A,B)

R=ShrinkComplexCurvelet(A,tau)

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updated 1 year ago

AR filter + Minimum Entropy Deconvolution for Bearing Fault Diagnosis by Santhana Raj

AR Filter by YuleWalker method combined with Minimum Entropy Deconvolution for bearing fault diagnos (ar, filtermed, minimum entropy decon...)

med2d.m

y=ar_med_filter(signal,Fs)

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updated 1 year ago

Calculation of CT MTF and NPS using the ACR accreditation phantom by Saul

This code enables measurements of CT MTF and NPS from images of an ACR accreditation phantom. (computed tomography, ct, modulation transfer f...)

SliceBrowser(varargin)

mtfcalc.m

npscalc.m

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updated 1 year ago

Chaotic Generators Demo by Bogdan Cristea

Chaotic generators demo can be used for studying the behavior of chaotic generators. (chaos, attractor, bifurcation diagram)

[waxis,Pyy,bic]=m_bicoher(y,nfft,wind,nsamp,overlap)

[waxis,Pyy]=m_powerspec(y,nfft,wind,nsamp,overlap)

attractor(action)

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updated 1 year ago

FeatureFinder 2.4.1 by Feature Finder

A user-friendly tool for signal filtering and feature extraction. Well-suited to large data sets! (gui, data import, data export)

Comm_Alert(sMessage)

Comm_Exit()

Comm_Help(sTitle,sMessage)

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updated 1 year ago

Sound file converter GUI by Christopher

The program converts MATLAB supported soundfiles with the use of GUI. (converter, gui, audioread)

ConverterPanel(varargin)

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updated 1 year ago

Agilent Infiniium and InfiniiVision Oscilloscopes – MATLAB Example by Vinod Cherian

MATLAB application example for Agilent Infiniium and InfiniiVision oscilloscopes (matlab example, agilent, oscilloscopes)

AnalyzedDataPanel(parent, title)

DataSourcePanel(parent, title)

MICTSource(hParent, bSimulation)

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updated almost 2 years ago

Wave Player Visualizations (Geek) by Suraj Kamya

Kviz_playerV1 is Kamya Visualization music player Version 1 have a number of Geek Visz (3D-also) (music player, visualization, sound processing)

Kviz_Player_V1(varargin)

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updated almost 2 years ago

Filter Bank Design by Iman

This function can be used to design uniform and non-uniform filter banks. (filter bank, perfect reconstructio..., uniform filter bank)

A=A_gerenator(x,Beta,Sigma_dictionary,M)

Beta=Beta_dictionary(M,nk)

M=Find_LCM(x)

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updated almost 2 years ago

speccompare by Martin Kuriger

SPECCOMPARE shows the spectral differences of two signals using colors and brightness. (signal processing, spectrogram, difference)

speccompare( X1, X2, Fs, titleString, maxDiff_dB )

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updated 2 years ago

Maximum Correlated Kurtosis Deconvolution (MCKD) by Geoff McDonald

A method to extract periodic impulses from a 1d signal. (fault detection, deconvolution, mckd)

mckd(x,filterSize,termIter,T,M,plotMode)

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updated 2 years ago

non dissipative ladder filters by Pierre Muret

calculate the inductances and capacitances of a non-dissipative analog ladder filter (analog filter design)

hurwitz(A)

unitarh(G,F,lim)

y11pb(G,H,lim)

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updated 2 years ago

Short Time Fourier Transform by Hafeez Dhalla

Script for computing the short time Fourier transform of 1D signals. (dsp, stft, fft)

X=stft(x,wl,olr,window,alpha)

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