2026-04-19T19:18:20Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/984402026-01-21T04:53:49Zcom_2072_1033col_2072_452950
RECERCAT
author
Sayrol Clols, Elisa
author
Vidal Manzano, José
author
Cabanillas, Silvia
author
Santamaria, Sonia
1999
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.Peer ReviewedPostprint (published version)
Open Access
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
Image processing -- Digital techniques
Watermarking
Color
Spread spectrum communication
Detectors
Humans
Frequency
Visual system
Psychology
Testing
Performance evaluation
Imatges -- Processament -- Tècniques digitals
Optimum watermark detection in color images
Conference report