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Question
i have this code to embed. How can i extract the secret message from the stego JPEG? also there is bright in the image when i apply the dct2 does anyone know how to solve it. here is my embedding process code :
clear; clc; a= imread ('lena.jpg'); I1=rgb2gray(a); f = double(I1); f= f-128; [mf, nf]= size(f); mb=mf/8; nb=n...
9 years ago | 0 answers | 0