visual cryptography
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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???
回答（1 个）
Walter Roberson
2012-1-5
newimage = s1 | s2;
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