High capacity digital audio reversible watermarking

Abstract

In this paper, a high capacity digital audio reversible watermarking algorithm based on generalized integer transform is proposed. The proposed algorithm is built on top of a recently proposed reversible image watermarking scheme. The main challenges to customize an image watermarking scheme to work for audio domain are the differences between the structures of image and audio, the target of the scheme based on is a twodimensional 8-bit grayscale image and the target now is a onedimensional 16-bit quantization audio waveform. The dimension issue can be solved by small modifications, to partition the audio waveform into two portions, so that the image watermarking scheme based on can be applied to the audio. For the proposed algorithm, satisfactory amount of data can be hidden into the audio and the stego audio is perceptible for large payload but not annoying for listening.

Marcado de audio mejorado en el dominio wavelet

“…Algunos de los trabajos reportados en la literatura se enfocan en una de las condiciones de diseño, por ejemplo, en [6] se utiliza la DWT y un cifrado adicional a la marca para aumentar la seguridad del proceso de marcado. En [7], se prevalece la capacidad de ocultamiento, a expensas de no cumplir plenamente con la condición de imperceptibilidad. En [8], la robustez frente a ataques pasivos, como compresión MP3 es el principal criterio de diseño.…”