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)

Perceptually improved colormaps by Matteo Niccoli

5 perceptual colormaps with rainbow-like colors and 1 with heat colors (colormap, data, graphics)

CompareLabPlotsUsingColorspace.m

MakeLabPlotUsingColorspace.m

example2.m

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, ...

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

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

Color Checker Chart by Image Analyst

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

CreateColorCheckerChart.m

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)

Fire and/or Custom Colormap Function by Tristan Ursell

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

fire(m)

geom2d by David Legland

Geometry library for matlab. Performs geometric computations on points, lines, circles, polygons... (computational geometr..., mathematics, plan)

angle2Points(varargin)

angle3Points(varargin)

angleAbsDiff(angle1, angle2)

Color Clustering Matlab by GAGAN

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

binary_quant.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)

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)

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()

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)

Plot to Bitmap by Dirk-Jan Kroon

Plot lines (and text) directly into a bitmap, including filled polygons. (bitmap, image, text)

I=bitmapplot(x,y,Ibackground,options)

I=bitmaptext(lines,I,pos,options)

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

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

Custom-shaped histogram by Image Analyst

Transform an image to have any histogram you want. (color detection, fun, segmentation)

shaped_histogram()

threshold(varargin)

threshold_grayscale_image(original_image, min_threshold, ma...

Image Edge Enhancing Coherence Filter Toolbox by Dirk-Jan Kroon

Advanced 2D/3D noise removal and edge enhancing with anisotropic diffusion filtering ( Weickert ) (3d, ridge, image enhancement)

CoherenceFilter(u,Options)

D=derivatives(I,option)

I=imgaussian(I,sigma,siz)

Simple color detection by hue by Image Analyst

Detect yellow regions in an image via thresholding in HSV color space. (color detection, color, color classification)

SimpleColorDetectionByHue()

Drawing Color Histograms and Color Clouds by Chaitanya Sai Gaddam

Matlab code to plot color histograms and color clouds (color histogram, 3d array, colour clourds)

createColorHistograms(im_str)

Draw a border around an image by Eric Johnson

Draws a colored border around an image. (image processing, border, border thickness)

addborder(img1, t, c, stroke)

Composing multiple BW images to one color image by David Silver

Composing n binary images to a colored image while each image is layer of some color. (pseudo color, visualization, color)

RGB_layers(imgs,RGBs)

domain coloring by Ankur Pawar

Visualization of complex function. (domain coloring, complex function, mathematics)

img=coolviz1(func)

img=coolviz2(func)

img=coolviz3(func)

imgaussian by Dirk-Jan Kroon

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

I=imgaussian(I,sigma,siz)

Color Image Processing Webinar Files by Bruce Tannenbaum

Presentation file and color calibration demo. (makecform, image, image processing)

adjustWP(squareMeans,chartSquares)

calculateError(squares1, squares2)

createCurves(...

NEGATIVE:Make colored negative images by Divakar Roy

Produces colored and gray negative images (negative, image, color)

negative(input_image, output_image)

AUTO LEVEL by Divakar Roy

Automatic adjustment of brightness & color of images (automatic, hue, color)

autolevel(input_img,output_img)

AUTO ENHANCEMENT FOR IMAGES by Divakar Roy

AUTO ENHANCEMENT FOR IMAGES to make better- looking images. (automatic, auto, image)

autoenhance(input_img,output_img)

AUTO COLOR by Divakar Roy

Automatic adjustment of hue & saturation (color) of images (enhancement, automatic, color)

autocolor(input_img,output_img)

Lab2RGB by Mark Ruzon

Converts an image from the CIELAB color space into the RGB color space. (color, image processing)

Lab2RGB(L, a, b)

RGB2Lab by Mark Ruzon

Converts an image from the RGB color space to the CIELAB color space. (color, image processing)

RGB2Lab(R,G,B)

Rendering High Dynamic Range Images on the Web by Linda Webb

Creating a digital imaging program to display high-contrast, high-resolution images on low dynamic r (whitepaper, article, paper)

VIBGYOR Color Segmentation by Kannan Keizer

VIBGYOR Color Segmentation (color, vibgyor, rgb)

VIBGYORsegmentation(img)

Simulation of Color Noise by Abhirup Lahiri

The function is used to simulate color noise process using Euler-Maruyama Method (color, noise, differential equation...)

colornoise(a,b,T,N)

Mix color and black and white in the same picture -custom colormaps by Vijay Swaminathan

This GUI will allow you to take a color image and set regions of it to be black and white. (application, color, image)

ColorMix(varargin)

RGB Image Decomposition by Rick Rosson

Displays RGB decomposition of a full color image (color, rgb, image decomposition)

imColorSep(A)

program Color balancing by Jeny Rajan

A simple program for color balancing (white balance, color balance, color)

W=wbalance(im)

simple RGB2grayscale converter by Steve

For beginners who are interested in color image conversions and need to understand how the conversio (convert, converter, grayscale)

rgb2grey(image_in)

POSTERIZE by Divakar Roy

Posterize images with different controls for 3 color components (rgb, enhancement, posterize)

output_data=posterize_rgb(img_data,no_of_level_red,no_of_le...

posterize(varargin)

Face Detection In RGB Model by Amiruddin Jemaat

To detect human face in color image (face detection, detect, rgb)

Face_test_luminance.m

label2rgb3D by payel ghosh

Creates a 4D rgb image from a 3D label image. (color, label2rgb, 3d)

rgb3d=label2rgb3d(varargin)

kjet.m by Glen DeLoid

Variant of jet, starting with black (color, variant, jet)

kjet(m)

Pixel Scan by Imran Akthar

User interface to check each pixel with its color present in image. (gui, display, annotation)

pixel_scan

profileQA by Harold Boll

Assess quality of an ICC profile. (profile, quality, color)

profileQA(prof, testNbr, varargin);