Image Processing Parlaklık, Kontrast ve Otomatik Kontrast

% Parlaklık
clc;clear;close all;
I = imread('peace.jpg');
g = rgb2gray(I);
g = g + 55;
imshow(g);
[/code]

 
[code language="matlab"]
% Contrast
clc;clear;close all;
I = imread('peace.jpg');
g = rgb2gray(I);
g = g * 1.75;
imshow(g);

%{
Automatic contrast Adjustment
f(a) = min(a) + (a - low(a)) * (max(a) - min(a)) / ( high(a) - low(a))

f(a) = (a - low(a)) * 255 / (high(a) - low(a))
%}

clc;clear;close all;
I = imread('peace.jpg');
g = rgb2gray(I);
imshow(g);
vlow = min(min(g));
vhigh = max(max(g));
g = (g - vlow) * ((255) / ( vhigh - vlow));
figure;
imshow(g);