Valcolor by Jurgen

Apply color CLR to colormap entry pertaining to value VAL. Either scaled or indexed figure. (color, colormap, intensity)

valcolor(varargin)

Color Constancy Algorithms (Gray World, White Patch, Modified White Patch, ETC) by Juan

The functions implements several of the color constancy techniques available. (color, constancy, gray world)

colorConstancy(I, algorithm, varargin)

hsv2hsl by Sander Verhaeven

converts colours from the HSV to the HSL colour space (color, colour, convertion)

HSV2HSL(input)

Tricontf by Rich Pawlowicz

Contouring and filled contouring for unstructured 2D triangular meshes (image processing, mathematics, data exploration)

[varargout]=tricont(varargin);

[varargout]=tricontf(varargin);

tridemo.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,...

imsurf: 3D images by Matthew Arthington

Plot images as 3D planes with full control over position and scale. (3d, surf, plot)

h=imsurf(imageIn,upperLeftPoint3,normal,imXDirVec,scale,var...

Digital Vectorscope by Nikolay S.

Generate a Vectorscope like plot from RGB data. (image processing, color, vectorscope)

assignin_value(name,value)

digitalVectorscope( inRGB, varargin )

fullFileName=filesFullName(inFile, filesExtList, dlgTitle, ...

Surface areas of contour by HY

This function outputs surface areas within each contour and their heights. (area, contour, 3d)

ContourArea( C )

Diffeomorphic Log Demons Image Registration by Herve Lombaert

Simple matlab code for 2D and 3D image registration using the diffeomorphic log-demons algorithm (image processing, image registration, 2d)

compose(ax,ay,az, bx,by,bz)

demons

demons

Zerocolor by Jurgen

Set colormap entry for zero values to specified RGB color (color, colormap, intensity)

zerocolor(varargin)

SC - powerful image rendering by Oliver Woodford

Useful tool for rendering and outputting information rich images (colormap, color, colorbar)

autumn(varargin)

bled(varargin)

bone(varargin)

Save and load data as multi-frame TIFF format by YoonOh Tak

Export various types of data such as single, double or 16bit integer as TIFF format (multiframe, tiff, export)

loadtiff(path)

saveastiff(data, path, options)

saveastiff_demo.m

Image Noise Reduction by Local Statistics by Tristan Ursell

Reduce image noise by measuring local pixel statistics and remapping intensities. (relative, deviation, statistics)

[varargout]=relnoise(Iin,sz,sigma,varargin)

dropshadow - Drop Shadow class for plot objects by Maarten van der Seijs

Adds a dropshadow to plot objects. (dropshadow, snapshot, export)

true) dropshadow

Region Adjacency Graph (RAG) by David Legland

Computes the graph of adjacent regions in a labeled image (rag, watershed, image)

demoImRAG

imRAG(img, varargin)

Draw lines with arrows by Sabesan

Draw lines with arrows. Multiple optional parameters are given for controlling the arrow and line (draw lines, plot, figure)

draw_line2(p1, p2, varargin)

Color Checker Chart by Image Analyst

Synthesize a perfect version of the X-Rite Color Checker chart. (image processing, color, bad)

CreateColorCheckerChart.m

Scalable Vector Graphics (SVG) Export of Figures by Juerg Schwizer

Converts 3D and 2D MATLAB plots to the scalable vector format (SVG). (plot2svg, svg filters, 3d)

demo_svg_water

plot2svg.m

simulink2svg

Gabor Filetr GUI by Nikolay S.

Design apply and learn the Gabor Filter via GUI. (gui, image enhancement, filter bank)

Gabor Filter GUI

GaborFilterDesighnNik(varargin)

Simple color adjustment sample by Masayuki Tanaka

The color adjustment will be performed, when you pick (click) white pixel. (color balance, color, white balance)

SimpleColorAdjust(varargin)

POLARMAP: Polarized colormap by François Beauducel

Colormap with zero-center white shading. (image processing, earth science, graphics)

polarmap(varargin)

Stacked Plot by Mirko Hrovat

Stacked plots display spectra with time or another parameter. Five methods are provided. (image processing, stacked plot, plot)

stackedplot(z,style,spacing,labels,varargin)

The Krouchev Journal-Figure Advanced MATLAB Toolkit by Nedialko

Toward an advanced Toolkit for Journal-Figure preparation using MATLAB (data import, image processing, article)

hNew=lafig3(newFig, fhv, FFM);

zbkfig1(fh,newFig,relScl);

demo3.m

Function for Viewing MRI Slices by Aras

Allows the viewing of slices of MRI data in the NIFTI format. (nifti, mri, slice)

splic(x,y,z,t)

Color Clustering Matlab by GAGAN

Computes the clusters of Pixels based upon their color. (color, color matlab, clustering)

binary_quant.m

plot_alpha by R P

Linear plot with translucid lines. PLOT_ALPHA(X,Y) plots vector Y versus vector X using Matlab FILL. (image processing, plot, line)

plot_alpha(x,y,color,width,transparency,method)

Solve the puzzle via djstra shortest path algorithm by Su Dongcai

an interesting application of djstra algorithm (djstra, demo, image processing)

shortestPath(img, sp, dp)

Kinect Microsoft SDK by Dirk-Jan Kroon

Video, Audio, Depth Stream and Skeleton tracking (microsoft sdk, 2d, 3d)

compile_cpp_files(MicrosoftSDKPath)

Example.m

ExampleMicrophone.m

Fetch Hue color by Prashant Somani

This function returns hsv image by entering H,S and V ranges in in function (hsv, image processing, color)

[im_col]=getcolor(imh,h1,h2,s1,s2,v1,v2)

"Cropped" Vectorized PDF File From MATLAB Figure by Anthony Ricciardi

Generate vectorized high resolution pdf image files that can be imported to LaTeX without cropping (latex, figure, vector graphics)

figure4latex.m

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 )

Quick Structured Mesh Generator by Tolga Birdal

Fast generation of structured meshes given the vertices (MEX!). Interpolation/resizing of the mesh. (3d, point cloud, interpolate)

[]=make_mesh_structured()

drawMesh(vertex, face, varargin)

mask2poly by Nikolay S.

Finds a polygon enclosing the user defined mask. Inverse of poly2mask :). (contour, roi, mask)

[xCW,yCW]=sortPoint2ContourCW(x,y)

[xDistSort,yDistSort]=sortPointMinDist(x,y)

poly=mask2poly(mask,countourType,sortPointsMethod)

Kinect Matlab by Dirk-Jan Kroon

Microsoft Kinect, OpenNI wrapper, Skeleton, Depth (2d, kinect, wrapper)

J=imagemax(Iin)

[I_SSD,I_NCC]=template_matching(T,I)

compile_cpp_files(OpenNiPath)

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)

Match Plot by Li yang Ku

Draw matching lines between corresponding points in two image. Useful for SIFT feature matching. (plot, match, line)

match_plot(img1,img2,points1,points2)

Color segmentation by Delta E color difference by Image Analyst

User draws region and this finds pixels in the image with a similar color, using Delta E. (segmentation, color, image processing)

DeltaE()

2-D convolution using the FFT by David Young

Convolution in 2-D using the Fast Fourier Transform. (convolution, filtering, fft)

conv_fft2(x, m, shape)

exindex(arr, varargin)

Fast 2-D convolution by David Young

Speeds up many 2-D convolutions using the SVD; also finds a fast approximation in other cases. (2d, filtering, convolution)

convolve2(x, m, shape, tol)

exindex(arr, varargin)

ArtToColormap by Matthew Behrend

Create custom color maps for charts from the colors found in photographs and paintings. (colormap, image processing, plot)

ArtToColormap(varargin)

createEmptyCMDatabase()

getCMap(cmName, cmLength, varargin)

double2rgb by David Legland

Converts an array of double (2D or 3D) to an RGB image using specified colormap (image processing, image display, rgb)

double2rgb(img, map, bounds, varargin)

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)

Colorspace Transformations by Pascal Getreuer

Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS (color, image processing)

colorspace(Conversion,varargin)

colorspace_demo(Cmd)

colorspace_ciedemo.m

Figure to play and analyze videos with custom plots on top by Joao Henriques

A figure ready to scroll through and play videos. You can also draw any custom graphics on it. (video processing, video, figure)

...

Sampling Of 2D Geometrical Object via Line Beams by Michael Chan

Illustrates coordinated sampling of a geometrical shape such as an eclipse is used in this case. (ray, plot, beam)

calculateEllipse(x, y, a, b, angle, steps)

deg2rad( inDegrees )

getPointsBetween2Points (startp,endp,pts)

Speech Spectrogram by Kamil Wojcicki

High quality speech spectrogram plot generation routine (spectrogram, image, power spectrum)

myspectrogram(s, fs, T, w, nfft, Slim, alpha, cmap, cbar, t...

test_myspectrogram.m

Freeman Chain Code by Alessandro Mannini

Gives Freeman chain code 8-connected representation of a boundary (boundary, chain code, freeman)

chaincode(b,unwrap)

Line Phantoms For Back Projection Detectability Tests by Michael Chan

Drafts lines used as biomedical phantoms for Back Projection Detectability Tests. (biomedical, image processing, detectability)

draftLinesForBackProjectionTest(scratchPad, numberOfLinesRe...

drawline(p1,p2,image_size)

imagePlot( imageData, plotRowSize, plotColSize, ...

Change 1 color to another of an image by Michael Chan

Illustrates the remapping of 1 color to another of an image. (image, image processing, rgb)

change1colorOnRGBToAnother(rgbImage, toleranceOfColorDetect...

plotFigureAsSubplot(image, titleString, numberOfPlotsPerRow...

usage_change1colorOnRGB_ToAnother.m

OverLaying Color Images by Michael Chan

Illustrates overlaying of 2 RGB images. Multiple images may be overlay 1 over the other as well. (overlay, rgb, color)

makeColorVersionOnBordersOfBW_Image(grayImage, thresholdedI...

overlay2colorImages(rgbImage, rgbImage2)

usage_overlayColoredBorders_Images.m