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updated 17 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 1 day ago

Iterative Trimmed and Truncated Mean Algorithm filter (ITTM filter) by Miao Zhenwei

ITTM filter for noise suppression and image processing. (image processing, signal processing, filter)

ITTM.m

ITTM_fix.m

ITTM_compile()

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updated 1 day ago

Fast Iterative Truncated Arithmetic Mean Filter (FITM filter) by Miao Zhenwei

ITM/FITM filter (image processing, signal processing, filtering)

ITM_fix.m

ITM.m

FITM.m

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updated 1 day ago

Weighted Iterative Truncated Mean Filter by Miao Zhenwei

WITM filters (image processing, signal processing, filter)

GWITM.m

LCWITM_filter.m

LCWITM.m

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updated 2 days ago

Mutual Information of Two Images by Mohammad Haghighat

Normalized mutual information (MI) between histograms of two images (image processing, signal processing, video processing)

mutualInfo(ima,imb)

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updated 2 days ago

Convert YUV Videos into Image Matrices by Mohammad Haghighat

Extract Y, U and V components of a YUV 4:2:0 video (video, video processing, video codec)

yuvRead(vid,width,height,nFrame)

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updated 2 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 7 days ago

Pseudo B-Mode Ultrasound Image Simulator by Debdoot Sheet

Simulate pseudo B-mode ultrasonic images with customized tissue echogenicity maps (image processing, signal processing, medical)

fcnPseudoBmodeUltrasoundSimulator.m

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updated 9 days ago

central_diff2(y,deltat,d,a) by Benjamin Strom

Finite difference approximation of any order derivative, any accuracy (interpolation, approximation, algorithm)

central_diff2(y,deltat,d,a)

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updated 9 days 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 9 days ago

Frequency-Domain Min-Max Optimization for Delta-Sigma Modulators by Masaaki Nagahara

Matlab codes are provided for min-max optimization for loop-filter design in delta-sigma modulators. (delta sigma, optimization, signal processing)

NTF_MINMAX(order, OSR, H_inf, f0, zf)

NTF_MINMAX_MB(order, OSR, H_inf, f, zf)

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updated 9 days ago

H-infinity optimal fractional delay filter by Masaaki Nagahara

A code for designing H-infinity optimal fractional delay filters (fractional delay, fractional delay filt..., signal processing)

fdf_hinf(F, D, T)

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updated 9 days ago

Find values in a vector or function by Adrian Lara-Quintanilla

For a function y=f(x), this script looks for all the "x" values for a desired value of "y" (y0). (mathematics, data exploration, time series)

findvalues(vector,yvalue)

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updated 10 days ago

nasa/T-MATS by Jeffryes

Simulink Toolbox for the Modeling and Analysis of Thermodynamic Systems, such as gas turbines (simulation, simulink, example)

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updated 13 days ago

Watermarking based on LBP by Mehran Kh

Watermarking based on linear binary patterns! (signal processing, image processing, watermark)

Sng(blok,Image_c)

extract(attack,mm,nn,rr,tt)

LBP_Watermarking.m

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updated 17 days ago

COSBOS: COlor-Sensor-Based Occupancy Sensing by Quan Wang

Occupancy distribution estimation for smart light delivery with perturbation-modulated light sensing (image processing, smart lighting, signal processing)

...

A=solve_A_0norm(X,Y)

A=solve_A_1norm(X,Y)

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updated 21 days ago

Calculo da Energia de um Imagem by Edmilson FIlho

Utilizando-se essa função poderá se calcular a energia de uma imagem (image processing, signal processing, energy)

energy.m

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updated 26 days 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 26 days 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 27 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)

CDT(ns,DatabasePath,ff,escImages)

Comparision()

Graphs()

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updated 28 days ago

Enhanced Binary Particle Swarm Optimization (BPSO) with 6 new transfer functions by Seyedali Mirjalili

An Enhanced binary Particle Swarm Optimization algorithm (VPSO) with v-shaped transfer functions (bpso, particle swarm optimi..., pso)

BPSO(noP,Max_iteration,BPSO_num,CostFunction,noV)

DrawConvergenceCurves(p,Max_iteration)

MyCost(x)

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updated 29 days ago

Mutual_Information && joint_entropy by Amir Pasha Mahmoudzadeh

Takes two images and return the mutual information and joint entropy (image processing, interpolation, registration)

[Mutual_Information,joint_entropy]=MutualInformation(x,y)

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updated 1 month ago

Greedy Algorithms for Non-linear Sparse Recovery by Kavya Gupta

Modifications in OMP and COSAMP greedy Algorithms for Non-linear Sparse Recovery (signal processing, optimization, matlab)

Grad(fun, x0, deltaFactor)

x=OMPE(A,myfun,k)

x=OMPL(A,myfun,k)

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updated 1 month ago

Regularization Kaczmarz Tools Version 1.1 for Matlab by Andrey Ivanov

Regularization Column version of Kaczmarz algorithmfor solving ill-posed systems (iterative projection ..., incorrect problems, regularized solution)

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

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

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

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updated 1 month 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 1 month 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 1 month ago

Wavelet based Image Reconstruction from Gradient Data by E

A toolbox for reconstructing images from gradient data. (image processing, gradient, poisson solver)

Reflect.m

Ad_GWN(X,targetSNR,st)

CombineRGB(R,G,B)

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updated 2 months ago

fulldiff.m by Timothy Jorris

Symbolically computes full derivative wrt time using chain rule and time variables. (symbolic math, full, derivative)

dout=fulldiff(varargin)

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updated 3 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 4 months ago

Graphical User Interface for Solving Ordinary Differential Equations for In-Vitro Infection by Soumya Banerjee

A graphical user interface to solve a set of ordinary differential equations (in-vitro infection) (data import, data export, gui)

odecall_eclipse_tcl_jv_local(target,infected1,...

odesolver_outline

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updated 4 months ago

NulceiHomo.zip by Cheng Lu

hybrid morphological reconstruction for pre-processing of nuclei image (image processing, nuclei segmentation, signal processing)

IM_homo=LmakeHomoonRC(IM,bw,strSize)

test.m

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updated 4 months ago

Intravascular Near-Infrared Fluorescence (iNIRF) Imaging by Sam Nazari

MATLAB based matched filter is implemented for an iNIRF imaging method (detection, machine learning, signal processing)

[sigma,mu,A]=mygaussfit(x,y,h)

attenuationRadiusRegression(manualSelectFlag,polyFitN)

findOptimalWidth(onlyFirstN,showWhich,templateSignalStats)

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updated 5 months ago

RViewer by Tony Davis

Image Viewer with Interpolation on Zoom, Multiple Sync (image, display, interpolation)

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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 5 months ago

window.m by Aravazhi Anbarasu

Window Function for Signal Processing (signal processing, control design, image processing)

window(win_size,type)

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updated 5 months ago

Chebfun V4 by Chebfun Team

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

absTest

ad_basic

ad_basic2

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updated 6 months ago

findpeaks2.m by Sudipta Das

Find all the peaks of a surface excluding NaN. (surface, mathematics, maximum)

[y,ind]=findpeaks2(P)

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updated 6 months ago

PID_fun.m by Aubai

An PID controller (matlab, mathematics, signal processing)

PID_fun(kp,kI,kD,Input,time,Compare)

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updated 7 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)

DD=myspline(D,theta)

GI=gaussianBlur(I,s)

R=correctCurve(r,sigma,iter)

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updated 7 months ago

Empirical Wavelet Transforms by Jerome Gilles

This toolbox proposes the original implementation of Empirical Wavelet Transforms (signal processing, image processing, mathematics)

Adaptive_Bounds_Adapt(f,params,fm)

AnglesLocalMax(f,N)

AnglesLocalMaxMin(f,N)

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updated 7 months ago

2-D Fast DOST Decompotion and Reconstruction by Yanwei Wang

This is the 2-D Fast DOST Decomposition and reconstruction. The computational complexity is O(NlnN) (image processing, signal processing, mathematics)

FOST_2D_DEC(S_input)

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updated 8 months 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 8 months ago

EzyFit 2.42 by Frederic Moisy

A free curve fitting toolbox for Matlab (approximation, interpolation, curve)

[eqml,param]=eq2ml(eq,xvar)

delseldata

findword(inputstr,delim)

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updated 9 months 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 9 months 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 9 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)

polyfitB(x,y,degree,b)

polyfitB0(x,y,degree,b)

polyfitBM(x,y,degree,b,m)

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updated 9 months 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 10 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 10 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 10 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(fun, x0, options)

newtonraphson_example

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