Histogram Equalization matlab code

Aim: To perform histogram equalization of an image

 Equipments:

Operating System: -     Windows XP

Software: -                   Matlab 7.5, Image Processing Toolbox.

Program:

clc;

clear all;

close all;

f=imread('coins.png');

figure, imshow(f);

title('input image');

h=imhist(f);

h1=h(1:10:256);

horz=1:10:256;

figure, bar(horz,h1);

figure, plot(horz,h1);

title('histogram equalized image');

Result: