Programixs: Program for image Brightness enhancement and brightness suppression using Matlab

Sunday, 11 September 2016

Brightness of Image is Enhanced by adding constant value to each pixel of image.

Here a image is read and converted into gray scale image. Then, each pixel value is increased

by a constant integer(i.e 80 here ). Similarly for suppression it is decreased by constant value.

Program:

clear all;

close all;

x=imread('D:\sample.jpg');

y=rgb2gray(x);

figure(1);

imshow(uint8(y));

title('original');

a=double(y)+80;

figure(2);

imshow(uint8(a));

title('Enhanced Image');

b=double(y)-80;

figure(3);

imshow(uint8(b));

title('Supressed Image');

Output:

Programixs