WAVELET DOMAIN WATERMARKING CAPACITY ANALYSIS (ThuAmPO3)
Author(s) :
Fan Zhang (Computer institute, Beijing University of Technology, China)
Hongbin Zhang (Computer institute, Beijing University of Technology, China)
Abstract : Capacity is an important character of digital watermarking. Research of image watermarking capacity is to study how much information can be hidden in an image. Recently, wave-let transform has been applied widely in watermarking re-search as its excellent multi-resolution analysis property. According to watermarking methods in wavelet domain, watermarkĄ¯s embedding and extracting realized in wavelet domain, we think that watermarking capacity should be ana-lyzed in wavelet domain also. This paper presents a water-marking capacity analysis method based on content of wavelet subbands by using Watson quantization matrix and Noise Visibility Function (NVF), and discusses watermark-ing capacity of blind watermarking and non-blind water-marking in this scenario.

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