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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: 2015 International Conference On Mechatronics, Electronics, And Automotive Engineering (icmeae 2015) Título del capítulo: Customer Authentication of Digital Imaging Using Hybrid Watermarking
Digital watermarking; Authentication; Hybrid watermark; Geometric distortions
Resumen:
In this paper, we present a robust and imperceptible hybrid watermarking
method in order to be applied to digital color images with the purpose
of detecting illegal copies, using a customer robust authentication. In
order to improve the robustness of the proposed method against several
common signal processing and geometrical attacks, two different
algorithms for embedding a unique watermark are used. The watermark is
composed by a binary pattern obtained from a cryptographic hash of the
customer data. Discrete Fourier Transform (DFT) and a bi-dimensional
histogram, both into the YCbCr color model domain, are used to embed the
watermark bit sequence. The quality of the watermarked image is measured
using the following well-known indices peak signal to noise ratio
(PSNR), mean square error (MSE) and structural similarity index (SSIM).
Experimental results show the robustness of the proposed method
preserving at the same time a high quality on the host image.
