2D Line Curvature and Normals

Accurate Curvature and Normals of a line/contour consisting of 2D points

Fast 2-D convolution

Speeds up many 2-D convolutions using the SVD; also finds a fast approximation in other cases.

Viewer3D

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

smooth2a

Smooths a 2D matrix using a mean filter over a user-defined rectangle. Ignores and preserves NaNs.

imtranslate

Affine translates a 2D image or 3D volume.

ent(varargin)

Built for 'highest possible' speed. Can handle any number of dimensions, given sufficient memory.

Plot 2D/3D region

The program plots convex linear closed regions in 2D/3D.

2D Weighted Polynomial Fitting and Evaluation

Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial

Separate Kernel in 1D kernels

Decompose an arbitrary N dimensional filtering kernel into 1D kernels, for faster filtering

Gielis2d

Use Gielis'es superformula in 2d plot

image3

Renders a 2-D image in 3-D space using a texture mapped rectangle, with several examples of uses.

Generate Random Numbers from a 2D Discrete Distribution

Random numbers from any 2D discrete probability distribution, at any resolution.

Fast Line Segment Intersection

Finds the pairwise intersection points between line segments in 2D Cartesian space.

2D polynomial fitting with SVD

Fits a polynomial f(x,y) to best fit the data points z using SVD.

cline

Draw a colored line in 2D or 3D

gptoolbox

Useful functions for geometry processing, constrainted optimization and image processing.

CI-ImagingLIF, Access Leica LIF and XLEF Files

Access Leica LIF and XLEF Files

Kinect Matlab

Microsoft Kinect, OpenNI wrapper, Skeleton, Depth

B-spline Grid, Image and Point based Registration

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

cloudPlot

A function to plot the distribution of 2-dimensional data.

Laplacian in 1D, 2D, or 3D

Sparse (1-3)D Laplacian on a rectangular grid with exact analytic eigenpairs.

isinconvexset (2D, 3D)

Function to verify if one given point is in or out a given convex 2D (polygon) or 3D (polyhedron) convex set, excluding its boundaries.

2D AR and 2D ARMA parameters estimation

Algorithms for 2D AR and 2D ARMA parameters estimation.

histograms for ND data

Create histograms for ND data using ND bins

Simple 2D kinematic vehicle steering model and animation

This is a simple 2D kinematic vehicle's steering motion and visualization in Simulink.

Using patch() and rotate() - Basics

Powerpoint slides on the basic usage of the patch() and rotate() functions. Includes 13 Examples.

2d and 3d brain plots

Quickly and easily create 2d and 3d plots of fMRI data.

Shortest Distance Between Two Lines in N dimensions

Function calculates shortest distance between two lines presented by two points for each line.

imgaussian

Fast Gaussian filtering of 1D, 2D greyscale / color image or 3D image volume.

ZigZag Scan any N*N Matrix (bloc of image)

ZigZagscan.m Transform an matrix to a vector using Zig Zag Scan.

A Simple Finite Volume Solver for Matlab

A simple yet general purpose FVM solver for transient convection diffusion PDE

2-D convolution using the FFT

Convolution in 2-D using the Fast Fourier Transform.

Finite Element Analysis (FEA) of 2D and 3D Truss Structure

To plot the Stress and Deformation in 2D or 3D Truss using FEM.

multimodality non-rigid demon algorithm image registration

non-rigid 2D and 3D image registration with demon (fluid) algorithm, extended with modality transf.

Active Shape Model (ASM) and Active Appearance Model (AAM)

Cootes 2D/3D Active Shape & Appearance Model for automatic image object segmentation and recognition

2D FDTD code with TF/SF interface and UPML absorbing borders

Simple example implements FDTD + UPML + Total Field/Scattered Field interface

Q_Schrodinger2D_demo

2D Time independent Schroedinger equation solver

distPBC2D.m

calculate vector in periodic boundary conditions

Viola Jones Object Detection

Viola Jones Object detection using OpenCV trained classifiers

Fast 2-dimensional interpolation

Provides a 5x-50x speedup over interp2

Fiber modes

Graphs of several fiber optic modes

Cone

3D cone connecting 2 points

mouse3d

Easily zoom, pan, rotate the camera in a Matlab axis with left/center/right mouse button

Fast/Robust Template Matching

Template Matching with SSD Block Matching and Normalized CC, (color) 2D and 3D

Interpolation for missing data

Interpolates using nearest neighbor, bilinear or bicubic formula for missing data points

N-Dimensional Histogram Count

Bins the elements of n matrices into an n-dimensional histogram.

Resampling volume or image with affine matrix

Use affine matrix to convert 3D vol or 2D img to orthogonal one with corresponding affine matrix.

Point to line distance [FAST]

Distance from a point to a 3D/2D line. Overloaded for multiple points and lines. Coordinates of projected point(s) also provided.

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

Connects randomly ordered 2D points into a minimal nearest neighbor contour.

The Pledge Algorithm - Thymio Robot Model on a Maze

The Pledge Algorithm - Thymio Robot Model on a Maze

FStr - Finite Strip Computer Application 1.4.0

Finite Strip Method Computer Application: Elastic Buckling Analysis of thin-walled structures

CURVVEC

draw curved vectors from 2D vector data

Two-dimensional Variational Mode Decomposition

Variationally decompose a 2D signal into k band-separated modes.

2D Transient heat conduction

2D transient heat conduction in materials, allows users to analyze temperature distribution over time and space.

Pore size distribution of 2D porous media images

Calculates the pore size distribution of 2D porous media images by watershed segmentation algorithm

Method of moments for 2D scattering from PEC cylinder (CFIE)

Solves 2D scattering problem using MoM with Pieacewise Linear basis and testing functions (Galerkin's method) and calculates RCS.

Method of Moments for 2D PEC Circular Cylinder (Point Match)

Solves 2D scattering problem for a circular cylinder using MoM using Point Match technique and calculates RCS.

Finite Element 2D Navier-Stokes on Gmsh mesh

Solving 2D Navier-Stokes using finite element method on a Gmsh mesh

Simple Transport of Intensity Equation Phase Unwrapper (stiepu.m)

2D phase unwrapping is a problem of the past!

IMAGECF Complex Field Visualization (amplitude, phase)

Imaging Complex Field with a corresponding color wheel Also applicable to visualization of a 2D vector field