visual cryptography

the secret image O in the two host images hs1 and hs2 resulting in two sheets denoted as s1 and s2 , respectively. s1 and s2 are superimposed in order to reveal the secret private image. So my question is how can we superimpose two images in R2009a Matlab???

Answer 1

[Walter Roberson]

newimage = s1 | s2;