How can i extract the hidden message from 1st, 2nd and 3rd bit plane of cover image and store in another text file?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
fp = fopen('C:\Users\hello\Documents\MATLAB\Full RSA Implement\plaintext.txt','r+');
SecretMsg=fread(fp,256*256*3/8);
fclose(fp);
SM=de2bi(SecretMsg);
SM1=reshape(SM,256*3,length(SM)*8/(256*3));
HS = logical(SM1);
I1 = HS(1:256,1:256);
I2 = HS(257:512,1:256);
I3 = HS(513:768,1:256);
II = logical(I8)*128+logical(I7)*64+logical(I6)*32+logical(I5)*16+logical(I4)*8+logical(I3)*4+logical(I2)*2+logical(I1);
Here i have done to hide a file inside the bit plane of cover image. Then i don't know hoe to retrieve same hidden file in another text file.
2 commentaires
Geoff Hayes
le 20 Sep 2016
Sanjeeb - where have you defined I4 through I8? To decode, wouldn't you just reverse the assignment for II?
Réponses (1)
Voir également
Catégories
En savoir plus sur Data Import and Export dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!