Grayscale Image & Color Image Histogram | MATLAB

 

% Histogram: a graphical display of data using bars of different heights.

% It is similar to a Bar Chart, but a histogram groups numbers into ranges .

% The height of each bar shows how many fall into each range.

clc

clear all

close all

a=imread('Golden.jfif');

subplot(1,4,1);

imshow(a);

title('Original Colored Image');

rc=a(:,:,1);

subplot(1,4,2);

imhist(rc);

title('Histogram of the red channel');

gc=a(:,:,2);

subplot(1,4,3);

imhist(gc);

title('Histogram of the green channel');

hc=a(:,:,3);

subplot(1,4,4);

imhist(hc);

title('Histogram of the blue channel');