Replace
toc
by
elapsed_time = toc;
which saves the elapsed time iin the variable, elapsed_time. And add
elapsed_time
after imshow()
In response to comment
The first mistake is that tic is outside the for-loop and toc inside. I missed that because toc wasn't intended. That raises the question which elapsed time do you want to measure.
Try something like this
function elapsed_time = xyz( )
% code
elapsed_time = nan( total_Blocks, 1 );
for ii=0:total_Blocks-1
tic
Plain_Text=linear_Image((ii*16)+1:(ii*16)+16);
Cipher_Text = cipher (Plain_Text, w, s_box, poly_mat, 1);
re_plainText = inv_cipher(Cipher_Text, w, inv_s_box, inv_poly_mat, 1);
enImage((ii*16)+1:(ii*16)+16)=Cipher_Text;
deImage((ii*16)+1:(ii*16)+16)=re_plainText;%Retrieved Plain Text
elapsed_time(ii+1) = toc;
end
figure,
imshow(uint8(enImage));
end
