Geometric measures in 2D/3D images by David Legland

Measure of geometric parameters in 2D or 3D images (surface area, perimeter, Euler Number...) (image analysis, particle analysis, region properties)

imArea(img, varargin)

imAreaDensity(img, varargin)

imAreaEstimate(img, varargin)

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

Line Detection via Standard Hough Transform by Amin Sarafraz

Detects lines in binary images via Standard Hough Transform. (line detection, hough transform, image analysis)

houghline(Imbinary,pstep,tetastep,thresh)

Circle Detection via Standard Hough Transform by Amin Sarafraz

Find circles with specific radius in a binary image via Standard Hough Transform. (hough transform circl..., image analysis, image processing)

houghcircle(Imbinary,r,thresh)

Image Segmentation Tutorial ("BlobsDemo") by Image Analyst

Image Processing Tutorial to demonstrate the basic concepts to beginner users. (demo, image analysis, image processing)

BlobsDemo.m

Image correspondences using cross-correlation by David Young

Find matching features in pairs of images using normalised cross-correlation: class file and demo. (image correspondence, pixel correspondence, stereo vision)

Image correspondence by cross-correlation demonstration

convolve2(x, m, shape, tol)

correspDisplay(corresps, im, col)

Affine optic flow by David Young

Estimates the parameters of an affine (first-order) optic flow model from two images. (image motion, optical flow, active vision)

Affine Optic Flow Demonstration

affine_flowdisplay(flow, im, step, col)

affine_flowedgedisplay(flow, im1, im2)

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

Recursive region growing algorithm for 2D/3D grayscale images with polygon and binary mask output (region growing, can anyone help me ou..., image processing)

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

ROIRool by hey dude

Draw Line Profiles and 2D ROI's in 2D images. (2d image, region of interest, lineprofile)

StatisticsWindow(Statistics,Number)

text=Struct2Text(struct)

LineProfile

Morphological Shared-Weight Neural Network for Face Recognition by Ethan Png

MSNN has the ability to learn feature extraction and perform classification at the same time. (image analysis, msnn face recognition...)

...

[W,Z,O,E]=msnn1(t,xcell,noHidCells,lrate,epoch)

[WX,ZX,O,E]=msnn2(t,xcell,noHidCells,lrate,epoch)

GUI for Multivariate Image Analysis of 4-dimensional data by Kateryna Artyushkova

Multivariate Image Analysis of 4-dimensional image sequences using 2-step two-way and three-way ... (pca, simplisma, image analysis)

[Classes,Centres,FinalDistance]=dcKMeans(Data,k,InitCentres...

[M,mask]=profile_z(images);

[c,t]=trilin(c,ne,ishape)

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. (circle detection, circular hough transf..., center)

CircularHough_Grd(img, radrange, varargin)

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

Edge Detection by Deepak Kumar Rout

Detects the edges in an image (line detection, pixel detection, image segmentation)

edge_detection.m

Particle Size Analysis from Image Processing Webinar by Robert Bemis

Example used for Image Processing Webinar 04-Mar-2004. (background removal, example, image analysis)

my_gui(varargin)

xtended_gui(varargin)

my_analysis.m

A Fast Corner Detector Based on the Chord-to-Point Distance Accumulation Technique by Mohammad Awrangjeb

Reference: A Fast Corner Detector Based on the Chord-to-Point Distance Accumulation Technique, IEEE. (fastcpda, cpda, corner detection)

fast_cpda(varargin)

DIPvelocimetry ver.1.0. by Marten Darmawan

This m-file is generated out to measure the fluid flow rate inside a microchannel. (dipimage, micropiv, image analysis)

DIPvelocimetry.m

Log-polar image sampling by David Young

Resamples an image from a conventional grid to a log-polar grid, and back. (image transform, active vision, logpolar)

logsampback(logarr, rmin, rmax)

logsample(arr, rmin, rmax, xc, yc, nr, nw)

logtform(rmin, rmax, nr, nw)

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)

Circular Hough Transform Demonstration

circle_hough(b, rrange, varargin)

circle_houghpeaks(h, radii, varargin)

Robust Image Corner Detection based on the Chord-to-Point Distance Accumulation Technique by Mohammad Awrangjeb

A robust scale-space corner detector that outperforms existing single and multi-scale detectors. (corner detection, image analysis, curvature)

cpda(varargin)

A Corner Detector based on Global and Local Curvature Properties by Xiaochen He

A robust corner detector works on grey-level images as well as planar curves. (image analysis, corner detection, curvature)

Image retrieval - Query by Example Demo by Theodoros Giannakopoulos

This demo provides a simple query by image example method, based on HSV values. (color, image analysis, image retrieval)

getImageHists(imageName, PLOT)

searchImageHist(imageName, modelName, nResults)

Fill corners of rotated image by Vlad Atanasiu

Rotate image without making black edges. (geometric transformat..., image registration, image analysis)

imregrotate(varargin)

GeoML by Gabriele Lombardi

A general morphable template tool for image segmentation. (morphable templates, active templates, geometric model)

GeoML: intro

ATE_EdgeDistance(varargin)

ATE_GradientNorm(varargin)

DTI and Fiber Tracking by Dirk-Jan Kroon

Diffusion MRI (DTI), calculates FA, ADC, Vector Field, and will track and visualize neural tracts. (dti, mri, diffusion)

[ADC,FA,VectorF,DifT]=DTI(DTIdata,parameters)

[info] =gipl_read_header(fname)

fibers=FT(FA,VectorF,Roi,parameters)

Diffusion Distance by Matthew Foster

Calculate the diffusion distance between histograms (histogram, distance, image analysis)

diffusion_distance(im1, im2, sig, dim, threshold, pad_type)

3D Stereo Disparity by Shawn Lankton

Compute 3D depth map from 2D images (3d, depth, disparity)

Luv2RGB(luvim)

RGB2Luv(im)

edison_wrapper(rgbim, featurefun, varargin)

roitool by Laszlo Balkay

Interactive roi definition tool (image analysis, roi circle rectangle ..., analysis)

draggable.m

roitool(arg1, arg2, arg3)

Gray Level Run Length Matrix Toolbox by Xunkai Wei

The toolbox provide useful functions for extract high order run length features (analysis, gray level image run ..., image)

grayrlmatrix(varargin)

grayrlprops(varargin)

maxnum=findmaxnum(seq)

Spatial Error Concealment by Marcelo Bel?

Implements video and static image spatial error concealment techniques with block error simulation i (image analysis, video spatial error c...)

DI (img, bs, sas)

DI (img, bs, sas)

Spat_Conceal(varargin)

FingerPrint Application by Florence Kussener

Capture the Minutiae from a fingerprint (can any one explain h..., fingerprint minutiae ..., than plz send me at u...)

FingerPrint Demo

D=DistEuclidian(dataset1,dataset2)

FingerPrintGUI(varargin)

Fast Motion Detection(bugs fixed) by Arash Jalalian

this script used a new fast block matching algorithm with dynamic search patterns to obtain motion v (block matching, motion detection, mpeg)

fastMV(im1, im2, w)

Fast Motion Detection by Arash Jalalian

calculate motion vector and representative motion vector for two sequence of images (image analysis, motion detction, motion vector)

fastMV.m

Shape Recognition by Ahmed Samieh

differentiate Square, Rectangular, Circle from others (analysis, recognition, image analysis)

Classify(ImageFile)

Xflow by DS

Image analysis for Jet-in-crossflow data. (image analysis, jetincrossflow, jicf)

Xflow(varargin)

abc2num(mString)

area2diameter(A)

Perimeter Estimation by Hamid Sarve

Estimates the perimeter of a binary image (image analysis, perimeter estimation, koplowitz and bruckst...)

ClassifyNodes(BinaryImg)

EstimatePerimeter(BinaryImg_in)

KernelNxM_const(img,y,x,n,m,const)

mean,Std,energy of image,CUMULATIVE GRAY LEVEL DISTRUBITION,mode of image, entropy, HISTOGRAM MODIFI by cenk

ONLY iMREAD COMMAND USED (image energy, entropy, cumulative distrubiti...)

odevv1.m

Histogram Equalization and Local Histogram Equalization by Madhu S. Nair

Histogram Equalization and Local Histogram Equalization of Images (histogram, histogram equalizatio..., image analysis)

histequal(x)

localhist(x)

DigiGraph by Arun K. Subramaniyan

Digitizes images and extracts data from plots (digitize, extract, digitise)

DigiGraph_GUI(varargin)

Region of Interest analysis by Florence Kussener

This example has been developed to add capabilities in ROI analysis: add, delete, change location, (image analysis, interest analysis, mask)

Region of interest tool

ROImenu

ROItool(varargin)

first order correlation by BABY VIJILIN

first order correlation of an image can be find out, which is useful in image analysis (image analysis, first order correlati..., correlation)

[s1]=firstordercorr()

Select ROI in image using spline by Simone Cazzaniga

A usefull program to select smooth region in image (image analysis, roi, spline)

mask=roispline(I,kind,tension)

Hough accumulator bin pixels by Steve Eddins

Find the pixels in a binary image corresponding to a particular Hough transform bin (hough_bin_pixels, pixels, hough)

hough_bin_pixels(bw, theta, rho, bin)

Contrast Stretching by James Wilcox

Perform Contrast Stretching where you choose values for slopes and positive integer values. (contrast stretching, image, positive integer)

Grayscale Slicing by James Wilcox

Where you define function f of x and choose levels "a" and "b" (image analysis, grayscale slicing, gray scale)

Grayscale Reversal by James Wilcox

Module to perform Grayscale Reversal (image analysis, reversal, gray scale)

STATISTICAL MEASURES OF TEXTURE IN AN IMAGE by BABY VIJILIN

COMPUTES STATISTICAL MEASURES OF TEXTURE IN AN IMAGE (image analysis, statistical measures, texture)

statistical.m

interactive binarization by thresholding by Angel Garcimartín

interactive thresholding to obtain binary images (image analysis, thresholding, morphology)

binar(varargin)

Hough Transform for Circle Detection (GUI) by Tan Chin Luh

Hough Transform for Circle Detection (circle detection, hough transform, hough)

houghGUI(varargin)

GUI Figure file by Ola Andersson

Simple image analysis (gallery, gui figurefile, figure file)

Detect lines in grayscale image using Hough Transform by Tao Peng

Detection of lines (line segments) in a grayscale image using gradient-based Hough Transform. (image analysis, excellent, line detection hough ...)

...

DrawLines_2Ends(lineseg, varargin)

DrawLines_Polar(imgsize, lineprm, varargin)