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1999
Vidal J, Sayrol E, Cabanillas S, Santamaría S. Non-Noticeable Information Embedding in Color Images : Marking and Detection. In 33rd ANNUAL - 1999 International Carnahan Conference on Security Technology. 1999. pp. 293–297.
Sayrol E, Vidal J, Cabanillas S, Santamaría S. Optimum Watermark Detection in Color Images. In 1999 IEEE International Conference on Image Processing. 1999. pp. 1–5.

Uncaught exception thrown in session handler.

PDOException: SQLSTATE[HY000]: General error: 1114 The table 'sessions' is full: INSERT INTO {sessions} (sid, ssid, uid, cache, hostname, session, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6); Array ( [:db_insert_placeholder_0] => qwlHAo9T8ZlVQIubNY5WTRrfy7Q6ZL-6ckD4RDTbXXQ [:db_insert_placeholder_1] => qwlHAo9T8ZlVQIubNY5WTRrfy7Q6ZL-6ckD4RDTbXXQ [:db_insert_placeholder_2] => 0 [:db_insert_placeholder_3] => 0 [:db_insert_placeholder_4] => 216.73.216.191 [:db_insert_placeholder_5] => biblio_filter|N; [:db_insert_placeholder_6] => 1776232658 ) in _drupal_session_write() (line 212 of /imatge-web/www/web/includes/session.inc).