To make this article self-contained, this section recalls
-the basis of the Syndrome Treillis Codes (STC).
+the basis of the Syndrome Treillis Codes (STC).
+\JFC{A reader who is familar with syndrome coding can skip it.}
Let
$x=(x_1,\ldots,x_n)$ be the $n$-bits cover vector issued from an image $X$,
