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updated 22 hours ago

inpolygons by Kelly Kearney

Kelly Kearney

Finds points inside multiple polygons, holes possible. (approximation, interpolation, polygon)

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updated 22 hours ago

Chebfun by Chebfun Team

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

Gabor Wavelets by Mohammad Haghighat

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 day ago

Gabor Feature Extraction by Mohammad Haghighat

Mohammad Haghighat

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

gaborFeatures(img,gaborArray,d1,d2)

gaborFilterBank(u,v,m,n)

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updated 3 days ago

Shape recognition using 2-D correlation by Diego Barragán

Diego Barragán

Shape recognition using 2-D correlation. Input images are read from webcam. (shape recognition, image processing, signal processing)

rec_shapes.m

clip_shape(imagen)

read_shape(imagn)

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updated 3 days ago

Active spline model (win) by Jen Hong Tan

Jen Hong Tan

A new model-based segmentation. It is close to active shape model, but uses Catmull-Rom spline. (computer vision, image processing, medical imaging)

jFlashingStr(hdl, StrContent, dur)

jFlashingStrStreamS(StringContent)

jasplmgomodel(asplm)

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updated 8 days ago

Command-line peak fitting function for time-series signals by Tom O'Haver

Tom O'Haver

Command-line peak fitter for time-series signals. Version 6.1, January 2015 (statistics, chemistry, curve fitting)

peakfit(signal,center,window,NumPeaks,peakshape,extra,Num...

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updated 8 days ago

Diffusion-driven Regularization Functional by Baraka Maiseli

Baraka Maiseli

This function addresses the ill-posedness of the super-resolution problem (image processing, signal processing, restoration)

regularizeSR( u, f )

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updated 9 days ago

Wavelet Based Image Segmentation by Ashutosh Kumar Upadhyay

Segment image containing objects of various intensities and shapes in noisy inhomogenous background (image processing, wavelet, image segmentation)

WaveletBasedImageSegmentation.m

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updated 11 days ago

Fast 'n easy smoothing by Damien Garcia

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 16 days ago

Tools for 2-D Tomographic Reconstruction by Ligong Han

Ligong Han

Tools for nonlinear filters & 2-D tomographic reconstruction (signal processing, image processing, reconstruction)

anisodiff(u, n_iter, tao, lambda, option)

bilateral_filter(u, n_iter, gn, lambda_s, lambda_r, option)

bpf(f, sf, BL, BH)

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updated 16 days ago

nasa/T-MATS by Jeffryes

Jeffryes

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

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updated 19 days ago

Averaging Filter by Wei Nick Chan

Wei Nick Chan

Averaging Filter for Digital Signal Processing Students (mathematics, simulation, signal processing)

Averaging Filter.m

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updated 28 days ago

Numerical Integration Toolbox by George Papazafeiropoulos

George Papazafeiropoulos

Contains several numerical integration rules to evaluate the integral of a function (abscissa, adaptive, chebyshev)

Adaptive Numerical Quadrature Theory

Integration Point Calculation Theory

Quadrature Rule Theory

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updated 1 month ago

ReadPhilipsScanPhysLog(filename, channels, skipprep) by Paul Groot

Paul Groot

ReadPhilipsScanPhysLog.m reads Philips scanphyslog files, which are created by Philips MRI scanners. (mri, philips, physiological)

ReadPhilipsScanPhysLog(filename, channels, skipprep)

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updated 1 month ago

Peak detection of a function by Shoaibur Rahman

Shoaibur Rahman

This function detects the transition points (maxima and minima) in a function like y = f(x) (signal processing, image processing, filtering)

findpeaks(y,x,threshold,stepsize)

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updated 1 month ago

Marginal distributions of a bivariate function by Shoaibur Rahman

Shoaibur Rahman

This function computes the marginal distributions of each variable in a bivariate function. (probability, computer vision, statistics)

marginaldist(f,x,y,distributionType)

testFunction(x,y)

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updated 1 month ago

Fast Third Order Cross-Cumulant calculation by Brian Liswell

Brian Liswell

Performs a fast third order cross cumulant calculation between the three vectors (x,y,z). (signal processing, mathematics, statistics)

cum3xyz(x,y,z, nsamp, overlap,window)

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updated 1 month ago

Greedy Algorithms and Greedy Analysis Pursuit for Non-linear sparse recovery by Kavya Gupta

Kavya Gupta

Modifications to Greedy Algorithms and Greedy Analysis Pursuit(GAP) for non-Linear sparse Recovery. (algorithm, matlab, optimization)

COSAMPEN(y,A,myfun,N,k)

COSAMPLN(y,A,myfun,N,k)

Grad(fun, x0, deltaFactor)

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updated 1 month ago

Multi-exposure and Multi-focus Image Fusion in Gradient Domain by Sujoy Paul

Sujoy Paul

An algorithm for fusion of a stack of multi-exposure and multi-focus images (image processing, image fusion, multiexposure)

ReconstructGradient.m

ChannelNorm(I,r)

GradientFusion(I)

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updated 1 month ago

Graph Cut for image Segmentation by Amarjot

Amarjot

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

graphcuts(I,pad,MAXVAL)

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updated 2 months ago

vebyk by Rolf Sidler

Rolf Sidler

vebyk performs ordinary kriging and can be easily adapted to other kriging methods. (kriging, 2d, approximation)

buildbigc3(position,anisotropy,nu,range)

buildsmallc3(position,anisotropy,nu,range)

covcalc(lag,nu,a)

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updated 2 months ago

Radial Basis Function Network by Travis Wiens

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 months ago

Weighted Iterative Truncated Mean Filter by Miao Zhenwei

Miao Zhenwei

WITM filters (image processing, signal processing, filter)

GWITM.m

LCWITM_filter.m

LCWITM.m

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updated 2 months ago

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

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 2 months ago

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

Miao Zhenwei

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

ITM_fix.m

ITM.m

FITM.m

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updated 2 months ago

Mutual Information of Two Images by Mohammad Haghighat

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 months ago

Convert YUV Videos into Image Matrices by Mohammad Haghighat

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 months ago

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

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 2 months ago

Pseudo B-Mode Ultrasound Image Simulator by Debdoot Sheet

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 2 months ago

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

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 2 months ago

Zernike Moments by Amir Tahmasbi

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 months ago

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

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 2 months ago

H-infinity optimal fractional delay filter by Masaaki Nagahara

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 2 months ago

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

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 3 months ago

Watermarking based on LBP by Mehran Kh

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 3 months ago

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

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 3 months ago

Calculo da Energia de um Imagem by Edmilson FIlho

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 3 months ago

PCA Based Face Recognition System Using ORL Database by Shujaat Khan

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 3 months ago

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

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 3 months ago

Mutual_Information && joint_entropy by Amir Pasha Mahmoudzadeh

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 3 months ago

Greedy Algorithms for Non-linear Sparse Recovery by Kavya Gupta

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 3 months ago

Regularization Kaczmarz Tools Version 1.1 for Matlab by Andrey Ivanov

Andrey Ivanov

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

Convergence of the Quasi-Optimal Kaczmarz algorithm.

Convergence of the regularized form of the Column-Kaczmar...

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

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updated 4 months ago

Contour detection by CORF operator by George Azzopardi

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 4 months ago

Wavelet based Image Reconstruction from Gradient Data by E

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 4 months ago

fulldiff.m by Timothy Jorris

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 5 months ago

Frequency Domain Filtering by MANISH KUMAR SHARMA

MANISH KUMAR SHARMA

Fourier Transformation and Frequency Domain are used for Filtering (image processing, signal processing, filtering)

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updated 5 months ago

Digital Image Processing Unit - 02.pdf by MANISH KUMAR SHARMA

MANISH KUMAR SHARMA

spatial filtering (image processing, signal processing, computer vision)

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updated 6 months ago

Region Contrast Saliency by Boris Schauerte

Boris Schauerte

(Locally debiased) Region contrast Saliency for salient object detection. (image processing, computer vision, signal processing)

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updated 6 months ago

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

Soumya Banerjee

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

odesolver_outline

odecall_eclipse_tcl_jv_local(target,infected1,...

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