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- Title
Marcado de audio mejorado en el dominio wavelet.
- Authors
Pinto, Erika; Maria Ballesteros, Dora; Renza, Diego
- Abstract
Image watermarking has been widely used for copyright protection purposes. One of the methods used to insert the marker corresponds to QIM, and is typically done directly on the image. The main disadvantage is that the level of security is low, and the mark can be easily removed if the value of the quantization step used is known. In order to increase security, we propose an improvement to the traditional QIM method, applying the insertion in the wavelet domain of the image, and only in some high amplitude coefficients randomly selected by the system. According to the tests carried out, it was verified that, if the marked image is attacked intentionally, the recovered mark has a readable content. Additionally, we have increased security, since the recovery key depends not only on the quantization step, but also on the selection of the wavelet coefficients.
- Publication
Visión Electrónica, 2018, Vol 12, Issue 2, p1
- ISSN
1909-9746
- Publication type
Article
- DOI
10.14483/22484728.14071