Adnan M. Alattar, Jessica J. Fridrich, Ned M. Smith, Pedro Comesaña Alfaro: Proceedings of the 3rd ACM Workshop on Information Hiding and Multimedia Security, IH&MMSec 2015, Portland, OR, USA, June 17 - 19, 2015. ACM 2015, ISBN 978-1-4503-3587-4