- node [style = rounded, shape = rect] start end;
- node [style = rounded, shape = rect] ED [label="x= LSB (7 bits\nEdge Detection)"]
+ node [style = rounded, shape = rect] message [label="Message mess"]
+ node [style = rounded, shape = rect] key [label="Key k"]
+ node [style = rounded, shape = rect] ee [label="Enlarge edges "]
+
+
+ node [style = rounded, shape = rect] encrypt [label="m=encryption(mess,k)"]
+ node [style = rounded, shape = rect] STC [label="y= STC(x,m)"] node [style = rounded, shape = rect] sample [label="y= sample(x,m)"]
+ node [style = rounded, shape = rect] emb [label="stego=embedding(y,X)"]