[RGB histogram] Extract RGB, histogram equalization -> red component and synthesize RGB #Multimedia_Systems #matlab

RGB.m

clc;        % Clear the command window.
clear;      % Clear workspace variable
close all;  % Clear figure windows

% Read the captured image file in MATLAB.
bmp = imread('RGB.bmp');

% Display the image on the screen.
imshow(bmp);

% Extract R, G, and B components of the image and display each of the three Components.
% [Indy] size (variable name) will show You have a 3-dimensional array. You can extract R G, B Components,
% respectively, by reading variable name (:,:, 1), Variable name (:,:, 2), variable name (:,:, 3).
red = bmp(:,:,1);
figure; imshow(red);

green = bmp(:,:,2);
figure; imshow(green);

blue = bmp(:,:,3);
figure; imshow(blue);

% Plot histogram of the R component.
figure; imhist(red);

% Perform "histogram equalization" of the extracted R component, and plot The result.
red_histeq = histeq(red);
figure; imshow(red_histeq);

% Synthesize the original color image using the histogram equalized R Component and display it on the screen.
new_bmp = cat(3, red_histeq, green, blue);
figure; imshow(new_bmp);