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)

exploreRGB by Brett Shoelson

Simple utility to view all color planes, grayscale, and colorspace conversions of an RGB image. (explore rgb color pla..., color, circularhough_grd_sl)

ExploreRGB

ExploreRGB(input, mode,opts)

expandAxes(hndls,rotEnable)

Hiding multiple Text pages into a Color image by Cherma Rajan A

This program can encode/decode maximum of six monochrome Text pages into a Color image without loss. (steganography, text encoding, text coding)

HIDE THE SIX TEXT PAGES IN A COLOR IMAGE

alt=alterim(i1,i2)

imhide(org,text)

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, ...

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)

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()

Generate maximally perceptually-distinct colors by Tim Holy

Choose a set of n colors that can be readily distinguished from each other (color, legend, colormap)

distinguishable_colors(n_colors,bg,func)

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)

Color Image Histogram by Jeff Mather

Display a histogram showing the color balance of an image. (color, rgbhist imhist color ..., also ididnot get the ...)

rgbhist(I)

Spectral and XYZ Color Functions by Jeff Mather

Label plots with spectra. Convert wavelengths to RGB. Functions for color matching and illuminants. (color, spectrum label color ...)

colorMatchFcn(formulary)

createSpectrum(matchingFcn)

illuminant(theIlluminant)

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)

SimpleColorDetection by Image Analyst

Script to do simple color detection in RGB color space. Finds red objects in the image. (color detection, color classification, color)

SimpleColorDetection()

Image Color Reduction by Robert Bemis

Reduce number of image colors. (color, rgb indexed image rep...)

ReduceColorPeppers

Color Segmentation by Robert Bemis

Example used for Imaging Webinar 26-June-2003. (color, webinar color image s..., toolbox demo)

webinar_script.m

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(...

Globs Game Player and Solver by Husam Aldahiyat

Play and/or solve this fun and addictive game. (globs, game, color)

buildglobs(A)

fillcc(x,y,c)

getAmat(l)

Image retrieval - Query by Example Demo by Theodoros Giannakopoulos

This demo provides a simple query by image example method, based on HSV values. (color, image analysis, image retrieval)

getImageHists(imageName, PLOT)

searchImageHist(imageName, modelName, nResults)

VIBGYOR Color Segmentation by Kannan Keizer

VIBGYOR Color Segmentation (color, vibgyor, rgb)

VIBGYORsegmentation(img)

Color Filtering by Kannan Keizer

This function can be used for separating or segment Red components, Green components and Blue Compon (filtering, color images, color)

colorfilter(img,color)

hsl2rgb and rgb2hsl conversion by Vladimir Bychkovsky

Functions to convert between RGB and HSL (hsl, hsl2rgb, rgb)

hsl=rgb2hsl(rgb_in)

hsltest()

rgb=hsl2rgb(hsl_in)

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)

Machine Vision System - Color Recognition by Vihang Patil

This gui is a demonstration on the concept of machine vision system for color recognition (color recognition, camera, machine vision)

control_panel(varargin)

eyekon

intialcheck

Color Detection Using HSV Color Space (Training and Testing) by Theodoros Giannakopoulos

The provided Matlab functions demonstrate a simple method for training and testing a color detection (color detection, color, hsv)

colorDetectHSV(fileName, hsvVal, tol)

getHSVColorFromDirectory(dirName)

selectPixelsAndGetHSV(RGB, Area)

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)

RGB to HSI conversion by Madhu S. Nair

RGB to HSI conversion (rgb to hsi conversion, color, rgb to hsv)

rgbtohsi(x)

Lab color scale by Steve Eddins

Create color scale that prints well on grayscale printers (color scale colormap ..., color)

color_scale(n, theta, r, dir)

color_scale_tool(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)

Edge Detection of Color Images by Jeny Rajan

Find edges of a color image. (application, color, edge)

R=edgecolor(nm);

Gray image to Color image conversion by Jeny Rajan

Converts a gray image to color image (gray2rgb, color, gray)

R=gray2rgb(img1,img2)

col2gray by Imran Akthar

This function convert a RGB image to gray inmage with or without filtering at user response. (color, rgb to filtered grays...)

col2gray

Edge Detection,Color Find,Maximum Color in Image User Interface by Imran Akthar

User interface for edge detection,cropping,color determintation.,Maximum Occurence of Color in a Ima (color, edge, annotation)

[image,index]=find_color(image,map,tr,colors)

color_check2

color_find

profileQA by Harold Boll

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

profileQA(prof, testNbr, varargin);

FIND_COLOR by Ikaro Silva

Selects a specific color in the input image (color, find colors select)

[image,index]=find_color(image,map,tr,colors)