image thumbnail

updated 13 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)

Image_Projection(T,M,Eigenfaces )

PCA_Core(Tr,M,dimensions)

PCA_NEW(Tr,Ts,TrNum,TsNum,dimensions,sno)

image thumbnail

updated 5 years ago

Image segmentation & Extraction by Diego Barragán

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

Imag_seg_ex.m

image thumbnail

updated 6 months ago

Fast 2D peak finder by natan

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

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

image thumbnail

updated 2 years ago

JPEG Compression (DCT) by Vinay Kumar Tadepalli

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

dct1.m

image thumbnail

updated 1 year ago

Graph Cut for image Segmentation by Amarjot

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

graphcuts(I,pad,MAXVAL)

image thumbnail

updated 4 years ago

Image segmentation using statistical region merging by 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)

image thumbnail

updated 1 year 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)

image thumbnail

updated 11 months ago

Light Field Toolbox v0.2 by Donald Dansereau

A set of tools for working with light field (aka plenoptic) imagery in Matlab (light field, plenoptic, lytro)

...

...

...

image thumbnail

updated 5 years ago

COUNT OF COINS by Diego Barragán

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

count_of_coins.m

image thumbnail

updated 17 days ago

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

image thumbnail

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

image thumbnail

updated 3 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)

image thumbnail

updated 30 days ago

Feature Mutual Information (FMI) Image Fusion Metric by Mohammad Haghighat

A non-reference image fusion metric based on mutual information of image features (image fusion, metric, image fusion metric)

fmi(ima, imb, imf, feature, w)

image thumbnail

updated 5 years ago

spiht algoritm based image compression by kranthi kumar

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

image thumbnail

updated 8 months ago

Hiding multiple Text pages into a Color image by 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)

image thumbnail

updated almost 3 years ago

Accurate Eye center location by 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)

image thumbnail

updated almost 4 years ago

Plot wavelet image (2D) decomposition by Benjamin Tremoulheac

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

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

image thumbnail

updated 6 years ago

IMAGE DENOISING USING BAYES THRESHOLDING OF WAVELET COEFFICIENTS by 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)

image thumbnail

updated 4 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

image thumbnail

updated 13 days ago

RViewer by Tony Davis

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

rview

rviewer

Contents.m

image thumbnail

updated 8 years ago

Image Compression Using Wavelets by S.Thayammal Subburaj

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

wavelet.m

image thumbnail

updated 3 years ago

Motion Detection by Harsha Vardhan

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

motion(A,B)

motio.m

image thumbnail

updated 1 year ago

3D histogram of RGB image by 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

image thumbnail

updated almost 3 years ago

Bi dimensional Emperical Mode Decomposition (BEMD) by SasiKanth

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

bemd.m

image thumbnail

updated 1 year ago

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

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

SP_2012_main.m

image thumbnail

updated 10 months 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)

image thumbnail

updated 9 months ago

2D and 3D Gabor Filter Creators by 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)

image thumbnail

updated 4 years ago

Gaussian Pyramid by Pranam Janney

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

Gscale(img,levels,gsize,sigma);

image thumbnail

updated 1 year ago

Mutual Information and Joint entropy by Amir Pasha Mahmoudzadeh

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

Mutual_Information=MutualInformation(x,y)

image thumbnail

updated 12 months ago

Probabilistic Non-Local Means by Yue Wu

This code implements the probabilistic non-local means algorithm for image denoising. (kernel estimation, denoising, signal processing)

PNLM(ObsImg,PatchSizeHalf,WindowSizeHalf,EstSigma,RhoSq)

image thumbnail

updated 5 years ago

vision_based_barcode_reader by Trieu Nguyen Ta

This program can read 3 barcode ean13,code 39,code 128c by stable image,and by camera, (image processing, mathematics, signal processing)

GRADUATE_PROJECT(varargin)

[k,g]=nhieutrenduoi(s)

c=cheo45pt(dt,hang,cot,I)

image thumbnail

updated almost 3 years ago

barcode reader by 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)

image thumbnail

updated 1 year ago

Canny Edge Detector by Amarjot

The code computes the edge map for a grayscale image using canny detector (image processing, signal processing)

[Ie1]=gradingedges(Ie,Tl,Th)

[Ifinal]=connectingedge(Ie1,Th,Tl)

[Isup]=nonmaximalsupression(I,theta)

image thumbnail

updated 2 years ago

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

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

main

image thumbnail

updated 3 years ago

2D haar transform by narendra karamangala

This function gives a 2D haar mwvelet transform. (2dwavelet, haar transform, signal processing)

image thumbnail

updated 2 years ago

Ant colony optimization for wavelet-based image interpolation by Kanchi

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

main

image thumbnail

updated 2 years ago

otsu's method by 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)

image thumbnail

updated 1 year ago

MATLAB Quiz by Khuhed

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

image thumbnail

updated 12 months ago

K means clustering for Image Compression by 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

image thumbnail

updated almost 3 years ago

PURE-LET for Poisson image denoising by 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)

image thumbnail

updated 12 months ago

eegplot by 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)

image thumbnail

updated 5 years ago

Create Video file from image or device by 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, ...

image thumbnail

updated 5 years ago

Impulse Noise Addition by Kannan Keizer

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

impulsenoise.m

image thumbnail

updated 4 years ago

Image and Video Processing with Simulink® Webinar Files by Alan Hwang

These are the files from the Image and Video Processing with Simulink webinar. (video, out of focus, outoffocus)

LCT.m

OurModel

out_focus_vid.wmv

image thumbnail

updated 5 years ago

ROI Draw by Christopher Changchien

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

ROIDraw(varargin)

image thumbnail

updated 2 years ago

Morph by Jonathan

Morphs an array into another (morph, morphing, interpolation)

morph(A,B,n,met)

trymorph()

image thumbnail

updated 4 months 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)

image thumbnail

updated 2 years ago

Image filtering by CNTM

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

twodncdf(imgIn, TMAX)

demo.m

image thumbnail

updated 1 year ago

Hierarchical RGB IMage Compression with GUI by Amarjot

The code performs Hierarchical image Compression on RGB image and presents the results with a GUI (image processing, signal processing, communications)

V=downSample (Val)

V=upSample(Val)

[s1,s2,s3]=jpeg(sBmp,quality,showDetail)

image thumbnail

updated 4 years ago

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

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

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

rangeReductionDemo.m

Contact us