Lens Distortion Explorer by Michael Quinn

Explore a standard lens distortion model. (camera calibration, lens distortion, image processing)

Lens Distortion Explorer

Image Sample cropping tool by Vignesh Ramkrishnan

This is a script which enables you to interactively crop image samples from a directory of images (image processing, computer vision, machine learning)

imcrop_tool(dirname,output_path)

March 2013 Japanese webinar "Introduction to Image Processing and Computer Vision with MATLAB" by Masa Otobe

Script used in the Japanese webinar for image processing and computer vision held on Mar. 01, 2013. (demo, image processing, computer vision)

S1_1_Index.m

S1_2_Thresholding_morph_coin_rice.m

S1_3_filtering.m

Face Parts Detection by Masayuki Tanaka

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

buildDetector( thresholdFace, thresholdParts, stdsize )

checkToolboxes(req)

detectFaceParts(detector,X,thick)

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)

space photo resection by Bashar Alsadik

This code is developed to compute the exterior orientation parameters of the camera. (photogrammetry, computer vision, image processing)

Imageresection (XYZ,xx,yy,wpk,f )

terrestrial image example.m

Active Contours implementation & test platform GUI by Nikolay S.

Implementation and demonstration of several active contours segmentation methods. (geodesic snakes, enhancement, segmentation)

Active Contours implementation & test platform GUI

ActiveContoursWihoutEdges(hObject,mask)

LevelSetEvolutionWithoutReinitialization(Img,sigma,epsilon,...

ContCode - Palmprint Feature Representation by Zohaib Khan

Compute the Multidirectional Feature Encoding (Contour Code Representation) of an Image (contcode, palmprint, palmprint recognition)

ContCode(I,k,varargin)

January 2013 "Computer Vision with MATLAB" webinar demo files by Bruce Tannenbaum

MATLAB code used in the computer vision webinar held on January 29, 2013. (computer vision, face detection, object detection)

y=playControls()

FacePeopleDetection.m

ForegroundDetection.m

Averaging Quaternions by Tolga Birdal

This function computes the average (mean) quaternion. (rotation, mean, average)

[Qavg]=avg_quaternion_markley(Q)

[]=test_avg_quaternion()

GMM-HMRF by Quan Wang

GMM-Based Hidden Markov Random Field for Color Image and 3D Volume Segmentation (image processing, optimization, pattern recognition)

BoundMirrorExpand(A)

BoundMirrorShrink(A)

GMM=get_GMM(X,Y,g)

Mean shift for finding modes by Soumitry J Ray

The submission finds modes in data. Data is generated from a mixture of gaussian with added outliers (computer vision, data mining, find modes)

findModes(points, n_seeds, dTol)

generateData(nDims,nPts,nClusters)

plotData(data, labels, data_mean)

Binary decision tree by Quan Wang

This software implements binary decision tree classifier in Matlab. (image processing, pattern recognition, machine learning)

T=create01Tree(X,label,Depth,Splits,MinNode)

T=get01Tree(k,T,X,label,Depth,Splits,MinNode)

[d c]=index2depth(k)

GPU Implementation for GVF Force Field by Quan Wang

We implement the GVF force field on GeForce GPU using CUDA. (image processing, optimization, signal processing)

info =mha_read_header(filename)

mha_read_volume(info)

Locality Preserving Projection (LPP) Based Facial Feature Detection by Iftekhar Tanveer

Classify if a person is wearing spectacles or not using Locality Preserving Projection (LPP) (lpp, computer vision, face)

EuDist2(fea_a,fea_b,bSqrt)

LGE(W, D, options, data)

LPP(W, options, data)

Visual scanpaths via Constrained Levy Exploration of a saliency landscape by Giuseppe Boccignone

The code is a simple demo of visual scanpath generation via Constrained Levy Exploration. (image processing, computer vision, visual attention)

SpectralResidualSaliency(inImage)

cleComputePotential(sal, tau_V, rows, cols)

cleComputeSaliency.m

Active geometric shape models by Quan Wang

The active geometric shape model is a novel approach for fitting a geometric shape in images. (shape model, image processing, optimization)

BoundMirrorEnsure(A)

BoundMirrorExpand(A)

BoundMirrorShrink(A)

Fast Linear binary SVM classifier by Sebastien PARIS

Fast implementation of Linear binary SVM via BLAS/OpenMP API (largescale svm, computer vision, supervised classifica...)

test_lsvm

basicroc.m

mexme_lsvm(options)

Active contour platform by olivier bernard

Compare the performance of different level sets and active contours methods. (level sets, active contours, segmentation)

Active contour platform

creaseg()

creaseg_bernard(img,init_mask,max_its,scale,thresh,color,di...

Stereo Matching by Wim Abbeloos

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

Stereo Matching

polyfit(x,y,n)

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

SFTA Texture Extractor by Alceu Costa

Implementation of the SFTA algorithm for texture feature extraction. (image descriptors, image processing, computer vision)

findBorders( I )

hausDim( I )

otsurec(I, ttotal)

Histograms of Oriented Gradients by Leo

mex function for calculating histograms of (oriented) gradients (Dalal & Triggs CVPR 2005). (gradients, histogram of oriented..., histograms)

Lucas-Kanade Tracker with pyramid and iteration by Edward Wiggin

Use Lucas-Kanade Algorithm to track feature points between 2 images (lucaskanade, tracking, computer vision)

LKTrack1( img1, img2, X1, Y1 )

LKTrackPyr( img1, img2, X1, Y1 )

LKTrackWrapper( imgseq,X1,Y1 )

Fast computation of Zernike Radial Polynomials by Mohammed Sadeq Al-Rawi

Q-recursive based iteration function (zernike moments, image processing, signal processing)

zernike_radial_polynomials(n,r)

DEM: Diffused expectation maximisation for image segmentation by Giuseppe Boccignone

Color image segmentation using a variant of the Expectation-Maximization (EM) algorithm. (expectationmaximisati..., image processing, computer vision)

gmmdem(mix, x, options, diffoptions)

label(im, str)

normalise(A, dim)

Fast Noise Estimation in Images by Tolga Birdal

Estimate the standard deviation of the noise in a gray-scale image. (computer vision, noise estimation, image processing)

estimate_noise.m

March 2012 demo files for "Computer Vision with MATLAB" by Bruce Tannenbaum

Demo files for "Computer Vision with MATLAB" held on March 2012. (computer vision, image processing, face detection)

ReplaceCard()

matching_fcn(ref_features, vid_features, th)

FaceDetection.m

Tracking by Xiong Xiao

Used background subtraction and Kalman filter for moving object tracking (computer vision)

ComVi_Homework4.m

Manual Ground Plane Mark up and Camera Calibration by Ben

Can be used to crudely calibrate camera by eye and define groundplane. (computer vision, camera calibration, ground plane estimati...)

CameraCalib(varargin)

Picture Letter Recognition software by nathanial hapeman

This program is able to recognize characters in a picture (computer vision, picture, image processing)

me_153_project.m

The PhD face recognition toolbox by Vitomir Struc

Useful functions for face recognition research. (epc curve, kpca, kfa)

compute_kernel_matrix_PhD.m

construct_Gabor_filters_PhD.m

evaluate_results_PhD.m

create a binary sphere by zhang zhen

create a binary sphere (computer vision)

cutellipsoid.m

Object Matching by Li yang Ku

An object matching method based on Lowe, D.G. Object recognition from local scale-invariant features (computer vision, surf, sift)

Demo.m

createTargetModel(targetImage, targetModelImage)

matchTarget(targetModel, testImage)

skin_face_detecting by suong Tran

This code can be used to detect face if the color of the background is not the same skin color. (face detecting, object tracking, image processing)

skin_face_detecting.m

point correspondence among 3D shape by Qing He

This code computes the point correspondence among 3D shapes. (computer vision)

[Z]=warpx3d(X1,Y1,Xtrans, reg)

[cx,cy,cz,E,L]=bookstein3d(X,Y,beta_k);

[v,nmv,u]=tpsmatch(v11,v30,f11,f30,nm11,nm30);

Picture Transformation Finder by Alexander Wallar

This function finds the transformation matrix of two images. (computer vision, parallel computation, parallel)

picTransformation(pic1, pic2)

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, biometric, fingerprint matching)

...

FindOrient(img, x, y)

FindTheta(img, x, y, CN)

Sharpness Estimation From Image Gradients by Tolga Birdal

The simplest form of estimating the sharpness feature from a grayscale image (sharpen, sharpness, unsharp)

[]=estimate_sharpness_test()

Smoothing 2D Contours Using Local Regression Lines by Tolga Birdal

This submission contains both the implementation and the test function for 2D contour smoothing. (smoothing, contour processing, chain codes)

test_smooth_contours()

Region Based Stereo Matching Algorithms by Baykant ALAGOZ

Disparity map generation by region based stereo algorithms (image processing, robot, map)

[Cikis]=IterativeAveragingFilter(I,iterasyon,PencereGen)

[ErrorEnergy]=windowSSE(Imr,Iml,windowSize,d)

stereoGlobalEnergyMinV2.m

Demos from "Computer Vision with MATLAB" webinar by Bruce Tannenbaum

Demo files for the "Computer Vision with MATLAB" webinar held on April 19, 2011. (computer vision, video processing, image processing)

FeatureBasedRegistration.m

StereoDisparityMap.m

TextureClassification.m

Edge detection by nonlinear derivatives by Olivier LALIGANT

This short demo presents an efficient algorithm for edge detection. (image processing, edge detection, edge localization)

edgeNL()

image mosaic using SIFT by Edward Wiggin

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

appendimages(image1, image2)

findHomography(pts1,pts2)

imMosaic( img1,img2,adjColor )

Fast Inpolygon in MEX by Tolga Birdal

Fast inpolygon function implemented in MEX. So far one of the fastest. (inpolygon, inpoly, points in polygon)

[]=sample_inpolygon()

inpoly(p,node,edge,TOL)

Corner Detection using SUSAN operator by Edward Wiggin

Detect corner points in an image using SUSAN operator. (corner, susan, image analyse)

susanCorner( img )

testSusan.m

RANSAC algorithm with example of finding homography by Edward Wiggin

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

findHomography(pts1,pts2)

genRansacTestPoints( ptNum,outlrRatio,inlrStd,inlrCoef )

randIndex(maxIndex,len)

HOG descriptor for Matlab by Oswaldo Ludwig

Image descriptor based on Histogram of Oriented Gradients for gray-level images (image descriptor, artificial intelligen..., computer vision)

H=HOG(Im)

Point Pattern Matching Algorithm for Hand Gesture / American Sign Language (ASL) Recognition by Caglar Arslan

A demonstration of American Sign Language recognition by using a Point Pattern Matching Algorithm. (american sign languag..., computer vision, pattern recognition)

Selecteds=findMax(results,depth);

appendimages(image1, image2)

hgr(input);

Hausdorff (Box-Counting) Fractal Dimension by Alceu Costa

Returns the Haussdorf fractal dimension of an object represented by a binary image. (image processing, computer vision, fractal)

hausDim( I )

Skeleton 2D by Roberto Herrera

A basic example of skeletons in 2D, using maltab. (skeleton, 2d, topology)

skeleton.m