pixels can be easily detected.
Practically speaking, if Alice would send
a hidden message to Bob, she would never consider
-such kind of image and a high embedding rate.
+such kind of image and a high embedding rate.
+\JFC{This desire to be adaptive has been
+studied too in~\cite{LiFengyongZhang14},
+but in JPEG frequency domain}.
The approach we propose here is thus to provide a small complexity
self adaptive algorithm
with an acceptable payload, which
