can anybody reframe this code to watermark an rgb image into an rgb
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
clear all;
close all;
x=double(imread('greens.jpg'));
figure;
imshow(x/255);
y=x;
a=zeros(300,500);
% (imread('l.jpg'));
a(100:250,100:350)=1;
figure;
imshow(a);
save m.dat a -ascii
x1=x(:,:,1);
x2=x(:,:,2);
x3=x(:,:,3);
dx1=dct2(x1);dx11=dx1;
dx2=dct2(x2);dx22=dx2;
dx3=dct2(x3);dx33=dx3;
load m.dat
g=100;
[rm,cm]=size(m);
dx1(1:rm,1:cm)=dx1(1:rm,1:cm)+g*m;
dx2(1:rm,1:cm)=dx2(1:rm,1:cm)+g*m;
dx3(1:rm,1:cm)=dx3(1:rm,1:cm)+g*m;
figure,imshow(dx1);
figure,imshow(dx2);
figure,imshow(dx3);
y1=idct2(dx1);
y2=idct2(dx2);
y3=idct2(dx3);
y(:,:,1)=y1;
y(:,:,2)=y2;
y(:,:,3)=y3;
figure;imshow(y1);
figure;imshow(y2);
figure;imshow(y3);
figure;imshow(y/255);
figure;imshow(abs(y-x)*100);
z=y;
[r,c,s]=size(z);
dy1=dct2(y(:,:,1));
dy2=dct2(y(:,:,2));
dy3=dct2(y(:,:,3));
y=z;
dy1(1:rm,1:cm)=dy1(1:rm,1:cm)-g*m;
dy2(1:rm,1:cm)=dy2(1:rm,1:cm)-g*m;
dy3(1:rm,1:cm)=dy3(1:rm,1:cm)-g*m;
y11=idct2(dy1);
y22=idct2(dy2);
y33=idct2(dy3);
yy(:,:,1)=y11;
yy(:,:,2)=y22;
yy(:,:,3)=y33;
figure;
imshow(yy/255);
figure;
imshow(abs(yy-x)*10000);
1 commentaire
Rik
le 1 Juil 2017
You should really add some comments to this code. A good rule of thumb is to try to make half of all characters in your code green. You will probably not write that much comments, but trying to will result in complete comments.
It is not clear to me what the purpose of this code is. Reading the title I expected something related to imfuse.
Réponses (0)
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!