An Image-Quality Guaranteed Method for Quantization-Based Watermarking Using a DWT (WA-P2)

Author(s) : Masaaki Fujiyoshi (Tokyo Metropolitan University, Japan) Hitoshi Kiya (Tokyo Metropolitan University, Japan)

Abstract : This paper proposes a quantization-based watermarking method that generates watermarked images of a desired image-quality independently of the characteristics of the original images. To guarantee the image-quality, this method utilizes the relationship between a transformed domain and the spatial domain for the signal energy. The proposed method extracts an embedded watermark sequence from a watermarked image without referring to any original images.

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