Title :
Optimum watermark detection in color images
Author :
Sayrol, E. ; Vidal, Julien ; Cabanillas, S. ; Santamaria, S.
Author_Institution :
Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
This work concentrates on the problem of watermarking embedding and optimum detection in color images through the use of spread spectrum techniques both in space (Direct Sequence Spread Spectrum or DSSS) and frequency (Frequency Hopping). It is applied to RGB and opponent color component representations Perceptive information is considered in both color systems. Some tests are performed in order to ensure imperceptibility and to assess detection quality of the optimum color detectors.
Keywords :
colour graphics; copy protection; image colour analysis; security of data; Direct Sequence Spread Spectrum; Frequency Hopping; color images; detection quality; imperceptibility; opponent color component representations; optimum detection; optimum watermark detection; spread spectrum techniques; watermarking embedding; Color; Detectors; Frequency; Humans; Performance evaluation; Psychology; Spread spectrum communication; Testing; Visual system; Watermarking;
Conference_Titel :
Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-5467-2
DOI :
10.1109/ICIP.1999.822890
