CIFASIS 20631
CENTRO INTERNACIONAL FRANCO ARGENTINO DE CIENCIAS DE LA INFORMACION Y DE SISTEMAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A DWT-SVD Based Perceptual Image Fidelity Metric For Watermarking Schemes
Autor/es:
DEL COLLE, FRANCO; GÓMEZ, JUAN CARLOS
Lugar:
Atenas, Grecia
Reunión:
Conferencia; International Conference on Signal Processing and Multimedia Applications, SIGMAP 2010, ICETE 2010; 2010
Institución organizadora:
INSTICC
Resumen:
In this paper, a novel DWT-SVD perceptual fidelity metric for the evaluation of watermarking schemes is introduced. The proposed metric is based on a widely used Human Visual Model in the Discrete Wavelet Transform domain accounting for the frequency sensitivity, and the local luminance and contrast masking effects of the human eye. A relationship between the visual model in the DWT domain and the modification of the wavelet coefficientss singular values is derived. The proposed metric is validated through subjective assessment and its performance is compared to several state-of-the-art perceptual image distortion metrics. The paper focus on Image Adaptive Watermarking methods in the Discrete Wavelet Transform Domain since they yield better results regarding robustness and transparency than other watermarking schemes.
