RGB2LAB_CVIP

rgb2lab_cvip() - Converts Red-Green-Blue Color value to L* a* b* Color value.

Contents

SYNTAX

OutputImage = rgb2lab_cvip(InputImage, type)

Input parameters include:

             (0 = Forward non normalized output)

             (1 = gives normalized output)

Output parameter includes:

DESCRIPTION

This function converts the input image from the RGB color space to the L*a*b* color space. The L*a*b* color space is perceptually uniform color space.

To view the 8-bit image of type double, divide by 255. To view the 16-bit image of type double, divide by 65535.

REFERENCE

1. Jain, Anil K., Fundamentals of Digital Image Processing,Prentice-Hall, ISBN 0-13-336165-9, 1989.

EXAMPLE

% Read image

 X = imread('Car.bmp');

% Call function

 S1 = rgb2lab_cvip(X,0);

 S2 = rgb2lab_cvip(X,1);

% Display input image

 figure;imshow(X);title('Input image');

% Display output images

 figure;imshow(remap_cvip(S1),[]);title('Output image1');

 figure;imshow(remap_cvip(S2),[]);title('Output image2');

CREDITS

Author: Deependra Mishra, March 2017
Copyright © 2017-2018 Scott E Umbaugh
For updates visit CVIP Toolbox Website

Published with MATLAB® R2014b