Feng Liu. <br/><br/>
Visual Cryptography for Image Processing and Security Theory, Methods, and Applications  Textual Documents 

 - 2 ed. 
 -  Springer-Verlag  2015 
<br/><br/><label>ISBN: </label>9783319234724 
<br/><br/><label>Subjects--Index Terms: </label>Data Security 
<br/><br/><label>Dewey Class. No.: </label>005.82