Title :
Evolution of the contrast with misalignment in visual cryptography
Author :
Machizaud, J. ; Fournel, Thierry
Author_Institution :
Lab. Hubert Curien, Univ. de Lyon, St. Etienne, France
Abstract :
The expression of the contrast in two-out-of-two visual cryptography is derived for shadow images composed of 1 × m shares with respect to a relative transverse shift of the shadow images.
Keywords :
cryptography; image coding; contrast evolution; shadow image; visual cryptography misalignment;
Conference_Titel :
Information Optics (WIO), 2012 11th Euro-American Workshop on
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-2000-9
Electronic_ISBN :
978-1-4673-1998-0
DOI :
10.1109/WIO.2012.6488923
