PS色调— —通道混合

clc;
clear all;
close all;

addpath(‘E:\PhotoShop Algortihm\Image Processing\PS Algorithm‘);

Image=imread(‘4.jpg‘);
Image=double(Image)/255;

r=Image(:,:,1);
g=Image(:,:,2);
b=Image(:,:,3);

blueGreen=0.5; 
redBlue=0.5; 
greenRed=0.5;

intoR=0.75;
intoG=0.25, 
intoB=0.25;

N_R=(intoR * (blueGreen*g+(1-blueGreen)*b) + (1-intoR)*r);
N_G=(intoG * (redBlue*b+(1-redBlue)*r) + (1-intoG)*g);
N_B=(intoB * (greenRed*r+(1-greenRed)*g) + (1-intoB)*b);


Img_new(:, :, 1)=N_R;
Img_new(:, :, 2)=N_G;
Img_new(:, :, 3)=N_B;

imshow(Img_new);
imwrite(Img_new, ‘out.jpg‘);

参考来源：http://www.jhlabs.com/index.html

原图：

效果图：