RGBTOHSV

clear all;
close all;

%Now we will change the image color scale
%from rgb to HSV

Ne=imread('kick1.jpg');
A_hsv=rgb2hsv(Ne);

%rgb2hsv() function change the scale from rgb to hsv
%HSV images have three channel like rgb images have.
%firt channel of HSV image is Hue

%Hue is expressed in degree and
% Color   Angle
% Red   0-60
% Yellow  60-120
% Green   120-180
% Cyan   180-240
% Blue   240-300
% Magenta 300-360

%Second Channel is Saturation
%It is amount of gray in color from 0 to 100 percent

%Third channel of HSV Image is Value(or Brightness)
%It describe the brightness or intensity of color
%from 0 to 100 percent.In this case 0 is totaly black
%and 100 is brightest

H=A_hsv(:,:,1);
S=A_hsv(:,:,2);
V=A_hsv(:,:,3);
   

figure(5);
    subplot(221)
    imshow(A_hsv);
    title('hsv image');


subplot(222);
    imshow(H);
    title('Hue');
   
    subplot(223);
    imshow(S);
    title('Saturation');
   
    subplot(224);
    imshow(V);
    title('Value or Brightness');