Title :
An image-quality guaranteed method for quantization-based watermarking using a DWT
Author :
Fujiyoshi, Masnaki ; Kiya, Hifoshi
Author_Institution :
Dept. of Electr. Eng., Tokyo Metropolitan Univ., 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.
Keywords :
data compression; data encapsulation; discrete wavelet transforms; feature extraction; image coding; image sequences; watermarking; DWT; discrete wavelet transform; embedded watermark sequence; feature extraction; image watermarking; image-quality; image-quality guaranteed method; quantization-based watermarking method; signal energy; spatial domain; transformed domain; Character generation; Degradation; Discrete wavelet transforms; Filter bank; Image generation; Labeling; Monitoring; Resilience; Signal synthesis; Watermarking;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1421643
