Hausdorff Distance by Zachary Danziger

Calculates the Hausdorff Distance between two sets of points in a Euclidean metric space. (distance, mathematics, metric)

HausdorffDist(P,Q,lmf,dv)

distance2curve by John D'Errico

Find the closest point on a (n-dimensional) curve to any given point or set of points (arclength, interpolant, distance)

distance2curve(curvexy,mapxy,interpmethod)

Geodesics on an ellipsoid of revolution by Charles Karney

Solutions of the direct and inverse geodesic problems (area, distance, earth)

defaultellipsoid

ecc2flat(e)

flat2ecc(f)

Edit Distance Algorithm by Reza Ahmadzadeh

Edit Distance is a standard Dynamic Programming problem. (mathematics, search, dynamic programming)

EditDistance(string1,string2)

LatLon distance by M Sohrabinia

Find distance between two points based on latlon coordinates (distance, latlon distance, distance on earth)

lldistkm.m

Array Factor by Electromagnetizery

Array Factor for dipoles. Adjustable number of elements, progressive phase, and separation distance. (antenna, phi, factor)

ArrayFactor(varargin)

NEARESTPOINT (sep 2012) by Jos (10584)

NEARESTPOINT - find the nearest value in another vector (statistics, probability, distance)

nearestpoint(x,y,m)

IPDM: Inter-Point Distance Matrix by John D'Errico

An efficient and accurate Inter-Point Distance Matrix (distance, interpoint, distances)

demo_ipdm

ipdm(data1,varargin)

interparc by John D'Errico

Distance based interpolation along a general curve in space (interpolation, spline, linear)

interparc(t,px,py,varargin)

Orthodromic distance by Nicolas Keckl

This function computes the orthodromic distance between A and B on WGS84. (orthodromic, distance, wgs84)

orthodrome(A,B)

Multidimensional Hausdorff distance for two sets of points by Denny Milakara

- 2D to nD, where n < length(points) - autocorrects wrong coords orientation (hausdorff, distance, hausdorff distance)

hausdorff(L1,L2)

Image chamfer distances and geodesic diameter by David Legland

Propagates geodesic distances in binary images, and compute geodesic diameter (distance, chamfer, geodesic)

demoImChamferDistance

demoImGeodesicPath

demoImMaxGeodesicPath

2D Distance Transform of Arbitrary Points by Tristan Ursell

Distance transform from arbitrary points at a user set resolution and range. (image, point, points)

[Xvec,Yvec,Dist]=clouddist(Xin,Yin,xlim,ylim,res)

Connect Randomly Ordered 2D Points into a Minimal Nearest-Neighbor Closed Contour by Tristan Ursell

Connects randomly ordered 2D points into a minimal nearest neighbor contour. (points, distance, neighbor)

[Xout,Yout,varargout]=points2contour(Xin,Yin,P,direction,va...

posdist by Jakob Tougaard

Calculates distance between two geographical positions in lat/long format (distance, latitude, longitude)

posdist(lat1,lon1,lat2,lon2,method)

arclength by John D'Errico

Compute the arclength of a general curve in any number of dimensions (arclength, spline, curve)

arclength(px,py,varargin)

Pairwise Distance Matrix by Mo Chen

Compute a matrix of square Euclidean or Mahalanobis distances between points sets(fully optimized!). (distance, mahalanobis, pairwise)

sqdistance(A, B, M)

geodistance by Ganquan Mao

Calculates the distance on the surface of the earth. (distance, earth surface, geodistance)

r=geodistance(ci,cf,m)

haversine by Ritchie Smith

Computes the haversine (great circle) distance in metres between successive points on the Earth. (haversine, latitude, longitude)

d=haversine(lat,long)

Red and Green Pixel Separation by GAGAN

The following code can be used to separate red and green pixels from a colored image. (image processing, red, green)

[IR,IG]=redorgreen(input,TR,TG,T2)

Shortest Distance Between Two Lines in N dimensions by Alexander Brodsky

Function calculates shortest distance between two lines presented by two points for each line. (2d, plot, intersection)

[dist Pc Qc]=distBW2lines(L1,L2)

Travel Guide (GridLess Based Djikstra Algorithm) by Krishna Lalith

Player need to Define Map & 2 Points to get Shortest Distance. (djikstra, algorithm, shortest)

Callback_Grid(handy,varargin)

TravelGuide(action)

[shortpath,flag]=ShortDist(S,D,Adj_Mat)

Travel Guide (Grid Based Djikstra Algorithm) by Krishna Lalith

Player need to Define Map & 2 Points to get Shortest Distance. (djikstra, algorithm, shortest)

Callback_Grid(handy,varargin)

TravelGuide(action)

[shortpath]=ShortDist(S,D,Adj_Mat)

Travel Guide (Points Based Djikstra Algorithm) by Krishna Lalith

Player need to Define 2 Points to get Shortest Distance Path. (djikstra, algorithm, shortest)

Callback_Grid(handy,varargin)

TravelGuide(action)

[shortpath,flag]=ShortDist(S,D,Adj_Mat)

Minimum distance between two polygons by sjye

Computes the minimum distance between two different shape polygons. (Vertex-vertex case) (polygon, minimum, distance)

min_dist_btwn_two_polygons(P1,P2)

Mahalanobis Distance by Kardi Teknomo

Return mahalanobis distance of two data matrices A and B (row = object, column = feature) (mahalanobis distance, statistics, data mining)

d=MahalanobisDistance(A, B)

Covariance matrix by Kardi Teknomo

Return covariance matrix for given data matrix X (row = object, column = feature) (data mining, distance, statistics)

C=Covariance(X)

DNorm2 by Jan Simon

Euclidian norm along a specified dim of an array - fast C-Mex (2norm, norm, distance)

DNorm2(X, n)

uTest_DNorm2(doSpeed)

OpenSURF (including Image Warp) by Dirk-Jan Kroon

SURF (Speeded Up Robust Features) image feature point detection / matching, as in SIFT (feature, scale invariant featu..., chris evans)

D=FastHessian_BuildDerivative(r,c,t,m,b) % This function Fa...

Iout=affine_warp(Iin,M,mode)

PaintSURF(I, ipts)

geodistance by Orlando Rodríguez

Calculates the distance on the surface of the earth. (distance, earth surface, points)

geodistance( ci , cf , m )

Distance calculation using Haversine formula by Josiah Renfree

Compute the distance between two locations using the Haversine formula (haversine, lat, longitude)

haversine(loc1, loc2)

Draw Line Segments (anti aliased) by Alvin

Drawing line segments, Distances from line segments, and line segment masks (lines, draw, line segment)

distanceFromLineSegment(x,y,p0,p1)

lineMask(imgSize, p0, p1, sigma)

Distance between points and ellipse by Rody Oldenhuis

Compute the distances between an ellipse and an arbitrary number of points, in 3D (distance, quartic root, point cloud)

distanceEllipsePoints(XYZ, a,b,c,u,v)

Determine the distance between two ellipses (in 3D) by Rody Oldenhuis

Determine the minimum distance (and corresponding angles) between two ellipses (geometry, ellipse, quartic)

distanceEllipseEllipse(a,b,c,u,v)

Minimum distance between two polygons by Guillaume JACQUENOT

This function computes the minimum euclidean distance between two polygons P1 & P2. (distance, polygon, minimum)

curveintersect(varargin)

min_dist_between_two_polygons(P1,P2,Display_solution)

Minimum Distance loop between 'n' number of points by Rohit

This functions finds minimum distance loop between no.of points using the distance formula. (point, distance, measurement)

minimumdistance(X,Y,x,y)

GDIST by Andrew Stevens

Display distance and azimuth between two points on a figure (gui tools, distance, maps)

varargout=gdist(varargin)

2D minimal segments distance by Roberto Olmi

Computes the minimal distace between two segments (2d, euclidean, segments)

d=segDistance(P,Q)

2D fast marching algorithm by Juan Cardelino

computation of distance maps using fast marching (fast marching, algorithm, eikonal)

T=fast_marching(data_points,siz,plot)

test_fm.m

Diffusion Distance by Matthew Foster

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

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

Distance from a point to polygon by Alejandro Weinstein

Calculate the distance from a point to 2-D polygon, and the point on the polygon closest to the poin (polygon, point, distance)

p_poly_dist(x, y, xv, yv)

Basic co-occurence by Patrice

Calculates the co-occurence matrix (image analysis, cooccurrence, gray scale)

y=cooc(I, dx,dy,gl);

Calculation of distance between strings by Eduard Polityko

A function computes Levenshtein and editor distances with use of Vagner-Fisher algorithm. (distance, editor distance, levenstein distance)

[d,A]=strdist(r,b,krk,cas)

Fordist.m

Computing Pairwise Distances and Metrics by Dahua Lin

Compute pairwise distance or metric values between two sets of vectors (distance, metric, pairwise)

slmetric_pw(X1, X2, mtype, varargin)

slmetric_pw_compile()

some important image processing tools by islam alabbasy

this smalll program applays some image processing tool box which are useful in image registeration. (application, image tool, edge detecting)

eximptool.m

Tanimoto by B. Andre Weinstock

Determines Tanimoto distance emulating a pdist function (distance, statistics, tanimoto)

tanimoto(X)

Constrained Dynamic Time Warping Distance Measure by Dave DeBarr

This MEX function computes the constrained dynamic time warping distance between two time series. (dtw, time series, audio processing)

Cooccurrence matrix by Baran Aydogan

Calculates cooccurrence matrix for a given direction and distance (cooccurrence, features haralick, gray scale)

cooccurrence (input, dir, dist, symmetric);

Cookdist by Antonio Trujillo-Ortiz

Cook's distance influence index. (statistics, probability, cook)

Cookdist(D)

Vectorized geodetic distance and azimuth on the WGS84 earth ellipsoid by Michael Kleder

Geodetic distance, forward azimuth, and return azimuth between coordinates (distance, wgs84, geodetic)

vdist(lat1,lon1,lat2,lon2)