MATLAB实例1-直方图均衡化

clc;
clear all;

img = imread('20171206-213721022-RGB.bmp');
[nHeight, nWidth, nDim] = size(img);
r = img(:, :, 1);
g = img(:, :, 2);
b = img(:, :, 3);
% 调用直方图均衡化函数分别对 R G B 分量进行直方图均衡化
R = histeq(r);
G = histeq(g);
B = histeq(b);
newimg = cat(3, R, G, B);
imshow(newimg);
imwrite(newimg,'20171206-213721022-RGB_histeq.bmp');

figure(1);
subplot(1, 2, 1), imshow(img);
title('均衡化之前的图像');
subplot(1, 2, 2), imshow(newimg);
title('均衡化之后的图像');