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updated 5 years ago

Optical Character Recognition (OCR) by Diego Barragán

The aim of OCR is to classify optical patterns corresponding to alphanumeric or other characters. (application, ocr, optimal character rec...)

[fl re]=lines(im_texto)

letter=read_letter(imagn,num_letras)

OCR.m

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updated 9 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 2 years ago

Snake : Active Contour by Dirk-Jan Kroon

Snake Segmentation (Kass et al), 2D/3D including GVF and balloon force (Easy to read code) (snakes, active, contour)

B=SnakeInternalForceMatrix2D(nPoints,alpha,beta,gamma)

B=SnakeInternalForceMatrix3D(FV,alpha,beta,gamma)

ExternalForceImage2D(I,Wline, Wedge, Wterm,Sigma)

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updated 3 years ago

Generate maximally perceptually-distinct colors by Tim Holy

Choose a set of n colors that can be readily distinguished from each other (color, legend, labels)

distinguishable_colors(n_colors,bg,func)

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updated 1 year ago

SegmentTool: An Interactive GUI for Segmenting Images by Brett Shoelson

Interactively find the best approach to segmenting (masking) your image (image, image processing, gui)

FindCirclesGUI.m

SegmentTool.m

cellfind(z)

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updated 1 year ago

Vehicle number plate recognition. by Rehan Qadir

Extracts the characters from the vehicle's number plate image, using Templates matching. (number plate recognit..., vehicle plate recogni..., number plate extracti...)

container=guessthesix(Q,W,bsize)

letter=readLetter(snap)

numberPlateExtraction.m

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updated 2 years ago

Active Shape Model (ASM) and Active Appearance Model (AAM) by Dirk-Jan Kroon

Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition (asm, active shape model, active shape)

A=imresize3d(V,scale,tsize,ntype,npad)

AAM_2D_example.m

AAM_3D_train_example.m

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updated 6 years ago

PCA-based Face Recognition System by Amir Omidvarnia

This package implements 'Eigenface', a PCA-based face recognition system. (application, face recognition, eigenface)

CreateDatabase(TrainDatabasePath)

EigenfaceCore(T)

Recognition(TestImage, m, A, Eigenfaces)

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updated 3 years ago

Face Detection System by Omid Sakhi

Face Detection using Gabor feature extraction and neural network (application, face detection, neural networks)

drawrec (in,w)

gabor (w,nu,mu,Kmax,f,sig)

im2vec (W27x18)

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updated 3 years ago

Viola Jones Object Detection by Dirk-Jan Kroon

Viola Jones Object detection using OpenCV trained classifiers (opencv, xml, face)

ConvertHaarcasadeXMLOpenCV(filename)

GetIntergralImages(Picture,Options)

HaarCasadeObjectDetection(IntegralImages,HaarCasade,Optio...

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updated 1 year ago

PIVlab - time-resolved particle image velocimetry (PIV) tool by William Thielicke

A GUI based tool to preprocess, analyze, validate, postprocess, visualize and simulate PIV data. (gui, image processing, particle image veloci...)

(nn(:,1)<1)|(nn(:,1)>n)|(nn(:,2)<1)|(nn(:,2)>m); nn(L,...

PIVlab_GUI.m

PIVlab_preproc.m

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updated 1 year ago

2D/3D image segmentation toolbox by Yan Zhang

2D/3D image segmentation using level-set based active contour/surface with AOS scheme (2d3d image segmentati..., levelset, aos)

ac_ChanVese_model(I, phi, smooth_weight, image_weight, ...

ac_GAC_model(g, phi, countour_weight, expansion_weight, ...

ac_SDF_2D(type, dims, varargin)

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updated 12 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)

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updated 3 years ago

Viewer3D by Dirk-Jan Kroon

MIP, Color, Slice and Shaded 3D (shearwarp) Volume Rendering, interactive 3D view/measurement GUI (volume render, volume rendering, mip)

B=SnakeInternalForceMatrix2D(nPoints,alpha,beta,gamma)

B=SnakeInternalForceMatrix3D(FV,alpha,beta,gamma)

ErrorData3D(varargin)

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updated 3 years ago

Digital Image Correlation and Tracking by Christoph Eberl

Calculate displacement and strain from a series of images (application, digital image correla..., tracking)

[FileNameBase,PathNameBase,filenamelist]=filelist_generator

[displx disply]=large_displ;

[marker_displacementx marker_displacementy gradientx grad...

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updated 3 months ago

Local binary patterns by Nikolay S.

Calculates image LBP (Local binary patterns). (lbp, image processing, pattern)

[outImg, varargout]=tightHistImg(inImg, varargin)

[radInterpFilt]=generateRadialFilterLBP(p, r)

assignUserInputs(funcParamsNames, varargin)

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updated 7 days ago

Image Measurement Utility by Jan Neggers

Interactive tool allowing the measurement of distances, radii, and angles in images (image processing, measurement, microscope)

measuretool(varargin)

Image Measurement Utility

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updated almost 5 years ago

Face Detection & Recognition System by Mukund Agarwal

The system is part of my final year project. (security, system, face)

database_update

motiondetect

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updated 3 years ago

Detect circles with various radii in grayscale image via Hough Transform by Tao Peng

Detect circular shapes in a grayscale image. Resolve their center positions and radii. (image analysis, circular hough transf..., various)

CircularHough_Grd(img, radrange, varargin)

DrawCircle(x, y, r, nseg, S)

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updated 1 year ago

Cascade Training GUI: Specify Ground Truth by Brett Shoelson

Interactive GUI for managing the selection and positioning of rectangular ROIs in a list of images. (cascade training gui, ground truth, computer vision)

CascadeTrainGUI(varargin)

addROI(varargin)

createButtonLabel(string,varargin)

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updated 4 years ago

Hough transform for circles by David Young

A Hough transform function for detecting circles, optimised to allow search over radii. (hough transform, circle, image analysis)

circle_hough(b, rrange, varargin)

circle_houghpeaks(h, radii, varargin)

circlepoints(r)

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updated almost 7 years ago

Anisotropic Diffusion (Perona & Malik) by Daniel Lopes

A set of filters that perform 1D, 2D and 3D conventional anisotropic diffusion (gray scale data). (filtering, anisotropic, diffusion)

anisodiff1D(sig, num_iter, delta_t, kappa, option)

anisodiff2D(im, num_iter, delta_t, kappa, option)

anisodiff3D(vol, num_iter, delta_t, kappa, option, voxel_...

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updated 4 years ago

Video: GUIDE Advanced Techniques by Doug Hull

Advanced techniques in GUI building with GUIDE. Techniques include: multi-window GUIs, application. (gui, guide)

main(varargin)

threshGui(varargin)

GuiAdvancedHull.swf

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updated 1 year ago

MorphTool by Brett Shoelson

An interactive environment for morphologically operating on images. (image processing, gui, morphology)

MorphTool(img,parent)

StrelTool(parentHndl,varName)

createButtonLabel(string,varargin)

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updated 7 years ago

Simulink Simulator for a Brushless DC Motor by Devendra Rai

Complete simulator for brushless dc motor based on MATLAB R13. (simulation, bldc simulator, simulator)

control1(t,x,u,flag,J,DF,N,BM,Rr,Rl,delta,KP,KI,KD,basecu...

delay(t,x,u,flag)

CONTROLLER_MOD

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updated 8 months 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 almost 2 years ago

Image overlay by Steve Eddins

Overlay a binary mask onto an image using a specified color (gui, display, annotation)

imoverlay(in, mask, color)

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updated 3 months ago

Face Parts Detection by Masayuki Tanaka

It detects faces with left eye, right eye, mouth, and norse. (image processing, face, computer vision)

buildDetector( thresholdFace, thresholdParts, stdsize )

checkToolboxes(req)

detectFaceParts(detector,X,thick)

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updated 3 years ago

Face Detection using Support Vector Machine (SVM) by Omid Sakhi

Face Detection using Gabor feature extraction and support vector machines (SVMs) (face detection, support vector machin..., svm)

gabor (w,nu,mu,Kmax,f,sig)

im2vec (W27x18)

imscan (net,im)

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updated 6 months ago

Image Registration App by Brett Shoelson

UI environment for registering a Moving image to a Fixed image (image, registration, gui)

ImageRegistrationApp.m

distributeObjects(nobjects,startpos,endpos,gap,warnoff)

expandAxes(hndls,rotEnable)

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updated 1 year ago

Face Recognition Software by Omid Sakhi

Face recognition software using Hidden Markov Models (HMM) and SVD features for education and study. (face recognition soft..., face recognition code, svm)

facerec(filename,myDatabase,minmax)

gendata()

getcam()

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updated almost 9 years ago

Fingerprint Recognition System by Luigi Rosa

Fingerprint recognition: demo code for performance evaluation (application, fingerprint recogniti..., gabor filter)

deg2rad(ingresso)

codice_au.m

codice_b.m

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updated 3 years ago

RANSAC algorithm with example of finding homography by Edward Wiggin

RANSAC algorithm with example of line fitting and finding homography of 2 images (image processing, ransac, line fitting)

findHomography(pts1,pts2)

genRansacTestPoints( ptNum,outlrRatio,inlrStd,inlrCoef )

randIndex(maxIndex,len)

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updated almost 8 years ago

Local Adaptive Thresholding by Guanglei Xiong

Threshold with local statistics, such as mean or median. (filtering, threshold adaptive lo..., svm)

bw=adaptivethreshold(IM,ws,C,tm)

testadaptivethreshold.m

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updated 4 years ago

Hessian based Frangi Vesselness filter by Dirk-Jan Kroon

Enhancement of Vessel/ridge like structures in 2D/3D image using hessian eigen values (ridge detector, edge detector, hessian filter)

FrangiFilter2D(I, options)

Hessian2D(I,Sigma)

Hessian3D(Volume,Sigma)

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updated almost 7 years ago

Shape Recognition by Ahmed Samieh

differentiate Square, Rectangular, Circle from others (image analysis, shape properties, analysis)

Classify(ImageFile)

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updated 4 years ago

MRI Brain Segmentation by Robert Bemis

Neuroimaging Case Study for seminars and webinars. (medical, segmentation, gray)

StepThru(mfile,ws)

UpdateSliceOMatic(X,hSlico)

[x,y]=limits(a)

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updated almost 4 years ago

Snakes: Active Contour Models by Ritwik Kumar

Implements snakes or active contour models for image segmentation. (active contour models, snake, image segmentation)

filter_function.m

getsnake.m

interate.m

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updated 2 years ago

Fingerprint matching algorithm using shape context and orientation descriptors by Joshua Abraham

Fingerprint matching code using a hybrid descriptor. EER < 1% (approx. 0.75%) on FVC2002 Db1_A. (fingerprint, fingerprint matching, fvc2002)

...

FindOrient(img, x, y)

FindTheta(img, x, y, CN)

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updated 9 years ago

2D Gabor Filter(Ver1,2,3) by Ahmad Poursaberi

To design 2D Gabor filter and apply it to image. (filtering, gabor filter, image processing)

gaborfilter(I,Sx,Sy,U,V);

gaborfilter(I,Sx,Sy,f,theta);

gaborfilter(I,Sx,Sy,f,theta);

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updated 2 years ago

Region Growing (2D/3D grayscale) by Daniel

Recursive region growing algorithm for 2D/3D grayscale images with polygon and binary mask output (region growing, image analysis, image processing)

regionGrowing(cIM, initPos, thresVal, maxDist, tfMean, tf...

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updated 6 years ago

FingerPrint Application by Florence Kussener

Capture the Minutiae from a fingerprint (image analysis, fingerprint minutiae ..., getting errors)

D=DistEuclidian(dataset1,dataset2)

FingerPrintGUI(varargin)

ValidationGUI(varargin)

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updated 5 years ago

GLCM texture features by Avinash Uppuluri

Calculates texture features from the input GLCMs (glcm, texture features)

GLCM_Features1(glcmin,pairs)

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updated almost 6 years ago

Character Recognition Example (III):Training a Simple NN for classification by Tan Chin Luh

This demo shows some examples for image pre-processing before the recognition stage. (application, neural netwrok, image processing)

charGUI(varargin)

charGUI2(varargin)

edu_createnn(P,T)

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updated 3 years ago

B-spline Grid, Image and Point based Registration by Dirk-Jan Kroon

B-spline registration of two 2D / 3D images or corrsp. points, affine and with smooth b-spline grid. (geometric transformat..., image registration, registration)

A=imresize3d(V,scale,tsize,ntype,npad)

Dlocal=jacobiandet_transform_2d_double(Ox,Oy,Isize,dx,dy)

E=strain(Ux,Uy,Uz)

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updated 1 year ago

Stereo Matching by Wim Abbeloos

A GUI demonstrates an efficient stereo matching algorithm. (stereo, matching, computer vision)

polyfit(x,y,n)

stereomatch(imgleft, imgright, windowsize, disparity, spa...

stereovision(varargin)

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updated almost 3 years ago

Color segmentation by Delta E color difference by Image Analyst

User draws region and this finds pixels in the image with a similar color, using Delta E. (image processing, color, segmentation)

DeltaE()

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updated 8 months ago

Improved Digital Image Correlation (DIC) by Elizabeth Jones

Calculate full-field displacements and strains from a set of images with a random speckle pattern. (digital image correla..., experimental mechanic..., noncontact)

...

...

...

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updated 3 years ago

Gabor filter by Gao Yang

Generates Gabor filters using bandwidth, aspect ratio, phase, wavelength and angle as parameters. (gabor filter, image processing, gabor filtergabor_exa...)

gabor_example()

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

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updated 3 years ago

image mosaic using SIFT by Edward Wiggin

Automatic image mosaic using SIFT, RANSAC and homography. (image processing, image mosaic, sift)

appendimages(image1, image2)

findHomography(pts1,pts2)

imMosaic.m

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