crop whitespace from an image by Andrew Bliss

CROP gets rid of whitespace around an image (crop, whitespace, image)

crop(filename,append,margin)

Merging pictures by Nishant Gupta

A very basic use of image processing toolbox to merge 2 (or more, with little editing) pictures. (merging, image processing, image)

picture_merge.m

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

fig- the exact figure size and no white space by Reza

Create publication-quality figures; easily define the figure's size, font of all labels, titles... (dimension, scale, size)

fig.m

Brick Toolbox by Thomas Deneux

The Brick Toolbox is a set of utility functions for Matlab. (easy, fast, cool)

a=fn_readasciimatrix(filename,nheaders)

createhelpfiles(mfile)

data=fn_bin(data,bins,varargin)

Label Image by Amitabh Verma

Script to place text label on the image without losing on the pixel information by pixel replacement (image, label, overlay)

labelimg(varargin)

Hertz's contact ellipse between rail and wheel by Jong Kim

This GUI provides contact shape and normal pressure within contact ellipse between rail and wheel. (hertz, normal pressure, wheel)

contact_ellipse_calculator(varargin)

Create a Simulated Image of Diffraction Limited Spots with Noise by Tristan Ursell

Create images with diffraction-limited spots of varying size and intensity, with noise. (image, create, creation)

[Iout,Inoise,spot_data]=spotmaker(im_sz,num_spots,varargin)

Spectrogram, STFT, with varied kinds of Plots by Shreyes

Plots STFT using line, Stem, Surface, Image. STFT calculation done using in built function (plotting stft, plotting spectrogram, signal processing)

spectrogram_multiplot(plot_type, data, varargin)

spectrogram_multiplot_demo.m

Fire and/or Custom Colormap Function by Tristan Ursell

Use the 'fire' colormap in Matlab, or create your own. (color, colormap, custom)

fire(m)

Vibration from frames by Nassim Khaled

this can be used to extract the frequency of a simple harmonic vibrations from frames (image, processing, vibration)

...

Frequency=vibration_from_images(FPS,base_name_of_frame,nb_o...

Y=line_detect_fct(Image)

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)

imstream by Oliver Woodford

A wrapper which abstracts videos and image file sequences, so they can be treated the same. (image, video, stream)

imseq

imstream

Matrix Convolution with Sub-Pixel Resolution by Tristan Ursell

Convolve two matrices at sub-pixel resolution, using bilinear interpolation. (matrix, convolve, convolution)

matout=matoverlay(mat1,mat2,x,y)

Coordinates Scanning by Michael Chan

The objective is to demonstrate some coordinates tracing tools. (image, coordinates, navigation)

detectCornerEdge (area, coordinates)

directionOfPixelRelativeToReferencePixel(positionOriginal, ...

directionOfPixelRelativeToReferencePixel_1pixelAway(positio...

Real-time Magnifying Glass: An Interactive Animation Example by Mingjing Zhang

A real-time mouse-following magnifying glass of several different shapes (magnifier, magnifying glass, gui)

magnifier(mask, FPS)

Image Quantiser for FLXTBL writer by PZFlex

Used in conjunction with the 'write_flex_material_table.m' (quantise, image, image processing)

quantise_image(I,CMap)

DrawRect by Vidya Murali

Draws a 1-pixel rectangle on an input image with a given color ('r', 'g' or 'b'). (image processing, rectangle, image)

DrawRect(wrimage,rect1,color)

test_drawrect.m

Cell Tracking. by Siva Malla

Blood Cell Tracking System (track, segmentation, image)

P0701.m

P0702.m

P0703.m

LABEL ME by Vidya Murali

MANUALLY LABELING IMAGE REGIONS BY SELECTING RECTANGLES (image, label, manual)

labelme.m

image_save by Tristan Ursell

You know that annoying error when trying to write to an image stack in Matlab? (image, stack, save)

image_save(Im1,basename,varargin)

3D Free Form Image Registration Toolbox (GUI) by Daniel Markel

A toolbox for performing image registrations on 4D RTOG files or any other volumetric image. (image registration, 3d, image)

Crop_image(varargin)

Dcoord(varargin)

Deform(varargin)

Draw color-coded lines in image. by Jan Heldal

LINES2IM generates an image with painted lines. The line-hues are the angles of the slopes. (image, paint, imageanalysis)

lines2im( X, Y, n,m)

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 (2d, active appearance mod..., active shape model)

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

AAM_2D_example.m

AAM_3D_train_example.m

copyaxes by Mar Callau-Zori

Copy an axes object into another axes object (copy, pie, axes)

copyaxes(source, destination, varargin)

Cropping Images on Simulink Blocks by Stacey Gage

Example of displaying and reducing an image on a Simulink block. (mask, image, simulink)

image_example

Snake : Active Contour by Dirk-Jan Kroon

Snake Segmentation (Kass et al), 2D/3D including GVF and balloon force (Easy to read code) (1987, witkin, contour)

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

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

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

medium filter bw by faisal reza

medium filter bw (image)

mediumfilter.m

Sub-pixel locations in 2D image by yang

The sub-pixel locations are solved by forming a Taylor series (subpixel, 2d, image)

subpix2d(R, C, L)

xyimagesc.m by Anthony Bathgate

Same as imagesc but works when X and Y are not evenly spaced. (image, imagesc, imagescnan)

xyimagesc( X, Y, C, varargin )

Fast mutual information of two images or signals by Jose Delpiano

Optimized function for mutual information of two images or signals (image processing, mutual information, image)

I=mi(A,B,varargin)

n=hist2(A,B,L)

mi_test.m

IM2GIF by Oliver Woodford

Converts a multiframe image to an animated GIF. (multiframe, animated, image)

im2gif(A, varargin)

Convert Image to high-quality .eps file in Matlab by Allan Peter Engsig-Karup

Convert Image to high-quality .eps file in Matlab. Useful for latex users. (latex, conversion, eps)

ImageToEps(filename)

imshow with True Size for multiple images by Adi Navve

imshowTruesize plots series of images in a single figure while preserving the actual aspect ratio (imshow, truesize, multiple scale)

imshowTruesize(imagesCellArray, margins, alignment)

TEXT2IMAGE : Convert an ASCII text file to image by Divakar Roy

Text to image conversion. (ascii, show, text)

text2image(y1,y2)

colorGradient: generate custom linear colormaps by Jose Maria Garcia-Valdecasas Bernal

COLORGRADIENT allows you to generate a linear color gradient from color A to color B. (colormap, image)

[grad,im]=colorGradient(c1,c2,depth)

RGBImageToTransparentPNG by Silvano Bertoldo

This functions gets a RGB image amd create a .png transparent image. (rgb, png, trasparent)

RGBImageToTransparentPNG( sImage, sNamePng, nColorNoTras )

uigetimage by Peter Burns

Simple file selection for images supported by IMREAD. Example of how to tailor UIGETFILE for images (image, gui, image processing)

uigetimage(titl)

TakeAPicture by Peter O'Connor

Take a snapshot of the current figure, save it as a png (or tiff or whatever) image (data export, gui, snapshot)

TakeAPicture(varargin)

Fast STL import function by Eric Trautmann

Function to import .stl geometry model files into matlab. (geometry, stl, model)

varargout=import_stl_fast(filename,mode)

RANDBLOCK by Jos (10584)

scramble matrices using blocks (v2.3, mar 2011) (matrices, scramble, matrix)

randblock(M,S)

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. (3d, bspline, registration)

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

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

E=strain(Ux,Uy,Uz)

K-means image segmentation by Pablo Fonseca

K-means image segmentation based on histogram to reduce memory usage which is constant for any size. (clustering, kmeans, image)

kmeansclustering(im, k)

Hiding image in sound (im2sound) by Stephen

Converts an image into a sound file. Played through a spectrum analyser, the image is revealed. (hiding, communications, sound)

im2sound(filename, ext, f_sample, f_low, ...

Image3 by Knut

A simple function for displaying 3-d arrays similar to how image() can be used for 2-d arrays. (image3, volume visualization, image)

image3(mat)

HistConnect by Dirk-Jan Kroon

Smooth histograms for sparse sampled signals and images, using low-frequency assumption. (histogram, hist, linear interpolation)

H=HistConnect(X,B,R)

Voxel Image by Stefan

This function creates a voxel image from a list of 3D data points using patch. (voxel, image processing, image)

voxel_image( pts, vox_sz, color, alpha, edgec )

bwclearborder by Sean de

Same thing as IMCLEARBORDER, but faster for 2 and 3-dimensional binary images. (bwclearborder, binary, bw)

bwclearborder(bw,conn)

imcensor by Sean de

GUI to censor parts of an image (gui, censor, image)

imcensor(I)

Viewer3D by Dirk-Jan Kroon

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

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

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

ErrorData3D(varargin)