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updated 3 months ago

Gabor Feature Extraction 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 year ago

Fast 2D peak finder by Natan

Natan

Find local maxima \ peak positions in noisy 2D arrays (peakfind, peak, local maxima)

[cent, varargout]=FastPeakFind(d, thres, filt ,edg, res, ...

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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 almost 5 years ago

Image segmentation using statistical region merging by Sylvain Boltz

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 months ago

Adaptive Filtering by Paulo S. R. Diniz

Paulo S. R. Diniz

  • 1 file
  • 147 downloads
  • 3.88462

MATLAB files to implement all Adaptive Filtering Algorithms in this book. (adaptive filtering, echo, signal processing)

Affine_projection(desired,input,S)

Affine_projectionCM(input,S)

CMA(input,S)

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updated almost 3 years ago

JPEG Compression (DCT) by Vinay Kumar Tadepalli

Vinay Kumar Tadepalli

JPEG compression using Discrete Cosine Transform Technique (image processing, simulation, signal processing)

dct1.m

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updated almost 6 years ago

Image segmentation & Extraction by Diego Barragán

Diego Barragán

This program segments and extracts objects from an image. (image processing, signal processing, templates)

Imag_seg_ex.m

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updated almost 2 years ago

Speckle Noise Reduction in Ultrasound Images by Ashish Meshram (Meet)

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 7 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 10 months ago

Retinal Vessel Detection by Gabor Transform and Machine Learning, a Tutorial by ted p teng

ted p teng

A tutorial on detection of retinal vessels by Gabor transform and machine learning (pattern recognition, vessel segmentaion, machine learning)

Gabor_GLM_FEX.m

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updated 3 months 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 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 years ago

barrel and pincushion lens distortion correction by Jaap de Vries

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 almost 5 years ago

fourier descriptor by michael scheinfeild

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 almost 6 years ago

COUNT OF COINS by Diego Barragán

Diego Barragán

COUNT OF COINS USING IMAGE PROCESSING TOOLBOX. (image processing, signal processing)

count_of_coins.m

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updated 1 year ago

Hiding multiple Text pages into a Color image by Cherma Rajan A

Cherma Rajan A

This program can embed/hide maximum of six monochrome Text pages into a Color image without loss. (color, watermarking, text hiding)

HIDING MULTIPLE TEXT PAGES INTO A COLOR IMAGE

altertxt(im_tx1,im_tx2)

extracttxt(im)

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updated 7 years ago

IMAGE DENOISING USING BAYES THRESHOLDING OF WAVELET COEFFICIENTS by aaa asdfgh

aaa asdfgh

this work is aimed to implement bayes thresholding. (enhancement, soft, hard)

WPSNR(A,B,varargin)

op=sthresh(X,T);

rmse=compare11(f1,f2,scale)

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updated 3 years ago

Bi dimensional Emperical Mode Decomposition (BEMD) by SasiKanth

SasiKanth

This function computes the 2D IMFs (first 3) for an Input Image. (signal processing, image processing, hilbert)

bemd.m

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updated 4 years ago

2D - 2D Projective Homography (3x3) Estimation by SasiKanth

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 5 years ago

Plot wavelet image (2D) decomposition by Benjamin Tremoulheac

Benjamin Tremoulheac

A short function for displaying wavelet image decomposition coefficients (image processing, wavelet, multiresolution)

plotwavelet2(C,S,level,wavelet,rv,mode)

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updated almost 4 years ago

Accurate Eye center location by GAGAN

GAGAN

The following code can be used to accurately determine eye center of any image. (image processing, eye center, eye)

eyepoint(input,kernelsize,sigma,minrad,maxrad,varargin)

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updated 6 years ago

spiht algoritm based image compression by kranthi kumar

kranthi kumar

matlab program for developing spiht algorithm must be much better than jpeg version in all cases. (signal processing, image processing, demo)

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updated 2 years ago

3D histogram of RGB image by Pavel Rajmic

Pavel Rajmic

Creates 3D-histogram from an RGB image in the form of balls within the RGB cube (rgb, image, histogram)

image_hist_RGB_3d(imname,n,gamma)

rgb_noise_image(rows,cols,filename)

demo_image_hist_RGB_3d.m

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updated 1 year ago

Bregman Cookbook by Jerome Gilles

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 almost 2 years ago

K means clustering for Image Compression by Vinay Kumar Tadepalli

Vinay Kumar Tadepalli

K-means clustering is a popular vector quantization method for data compression. (image processing, simulation, demo)

Kmeans_Pre_Post.m

kmeans_clustering.m

Image_kmeans_main.m

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updated 14 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 almost 4 years ago

Motion Detection by Harsha Vardhan

Harsha Vardhan

Motion Detection using videos recorded still camera (signal processing, image processing, video processing)

motion(A,B)

motio.m

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updated almost 3 years ago

Image filtering by CNTM

CNTM

Improved adaptive complex diffusion despeckling filter (NCDF) (signal processing, image processing, medical)

twodncdf(imgIn, TMAX)

demo.m

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updated 1 year ago

2D and 3D Gabor Filter Creators by Frederick Bryan

Frederick Bryan

Can generate 2D or 3D Gabor filter kernels. Parameters enable almost any kernel to be created. (image processing, signal processing, gabor)

slice_slider(invol)

varargout=gabor3_fwb(aspect,theta,bw,psi,sigma,sz)

varargout=gabor_fwb(aspect,theta,bw,psi,sigma,sz)

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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 almost 2 years ago

Adaptive multi-focus image fusion using a wavelet-based statistical sharpness measure by Kanchi

Kanchi

Adaptive multi-focus image fusion using a wavelet-based statistical sharpness measure (image processing, signal processing)

SP_2012_main.m

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updated 3 years ago

barcode reader by Indraneel Biswas

Indraneel Biswas

barcode reader which does not use thresholding (barcode, image processing, signal processing)

[X,P]=subPx(g,x,gMax,N)

[gw,xw]=movAvg(g,wt)

[pk,loc]=peakDetect(g,minHt,minDist)

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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 1 year ago

Multi Spectral Demosaicing algorithms by Hemant Kumar Aggarwal

Implementation of two multispectral demosaicing algorithms. (image processing, signal processing)

X=myTrain(img)

Xestimated=BTESinterpolate(x)

[img raw umsf]=UMSF(img)

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updated almost 5 years ago

Image Processing with GUIDE by BIREM Merwan

BIREM Merwan

Image processing - segmentation - guide MATLAB (signal processing, image processing, gui)

About(varargin)

Merwan1.m

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updated 6 years ago

Create Video file from image or device by Volker Schuster

Volker Schuster

Create a video file, by continuously reading an image from url or a video device or screen (application, image acquisition, image processing)

observe(image_url, interval_sec, video_filename_pattern, ...

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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 9 years ago

Image Compression Using Wavelets by S.Thayammal Subburaj

S.Thayammal Subburaj

Compression using wavelet transform which give better reconstruction. (compression, wavelet, transform)

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updated 6 years ago

Impulse Noise Addition by Kannan Keizer

Kannan Keizer

Adding impulse noise to image (signal processing, image processing, impulse noise)

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updated 5 years ago

Effect of Range Reduction in Video/Image Compression by Fitzgerald Archibald

Fitzgerald Archibald

Range reduction demonstration using JPEG codecs. (image processing, signal processing)

ssim_index(img1, img2, K, window, L)

rangeReductionDemo.m

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updated 6 years ago

ROI Draw by Christopher Changchien

Christopher Changchien

ROI Draw allows you to draw rectangular ROI's at any angle. (signal processing, statistics, probability)

ROIDraw(varargin)

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updated 1 year ago

eegplot by Ikaro Silva

Ikaro Silva

Uses scattered data points to interpolate pixel values of a head image. (medical, eeg, interpolation)

[z,map]=eegplot(mag,ch,unorm,ch_disp,method,color_res)

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updated 3 years ago

Ant colony optimization for wavelet-based image interpolation by Kanchi

Kanchi

Ant colony optimization for wavelet-based image interpolation (image processing, signal processing, image interpolation)

main

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updated almost 3 years ago

otsu's method by Ullesh Chavadi M

Ullesh Chavadi M

To find the threshold of the image (image processing, signal processing)

[k]=otsu(a)

[wb,wf,mb,mf,vrb,vrf]=cal(i,b,m)

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updated 3 years ago

PURE-LET for Poisson image denoising by SANDEEP PALAKKAL

SANDEEP PALAKKAL

This is an implementation of the PURE-LET, recently proposed for Poisson image denoising. (pure, purelet, sure)

cshift2(x,m,n,ud,rl)

cspin_purelet( x, let_id, J, nSpin )

fast_cconv2(x,h,opt)

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updated 3 years ago

Image edge detection using variation-adaptive ant colony optimization by Kanchi

Kanchi

A demo program of Image edge detection using variation-adaptive ant colony optimization (image processing, signal processing, edge detection)

main

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updated 5 years ago

Gaussian Pyramid by Pranam Janney

Pranam Janney

Generates a gaussian pyramid for the given input image (image processing, mathematics, data import)

Gscale(img,levels,gsize,sigma);

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updated almost 2 years ago

MATLAB Quiz by Khuhed

Khuhed

MATLAB Quiz (100 Questions) (control design, image processing, signal processing)

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updated 6 months ago

An Efficient Median Filter by Arun Kumar

Arun Kumar

The median filter is used to reduce noise in an image (image filtering, image processing, filter)

pgm.m

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updated 3 years ago

Video Recording by rasam aliazizi

rasam aliazizi

Recording video & snapshots using a web cam or other. (image processing, signal processing, gui)

Creat_AVI(varargin)

CreateImAqObject(varargin)

Export2WorkSpace(var, val, varargin)

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