20 search results - page 1 / 4 » Constrained Wavelet Tree Quantization for Image Watermarking |
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
This paper investigates the operations of the wavelet tree based quantization and proposes a constrained wavelet tree quantization for image watermarking. The wavelet coefficients ...
ICIAP
2007
ACM
14 years 5 months ago
2007
ACM
ICIP
2003
IEEE
14 years 7 months ago
2003
IEEE
Spread Transform (ST) is a quantization watermarking algorithm in which vectors of the wavelet coefficients of a host work are quantized, using one of two dithered quantizers, to ...
IPCV
2007
13 years 6 months ago
2007
- In this paper a Discrete Wavelet Transform based blind watermarking algorithm is proposed for embedding a grayscale watermark into a grayscale image. A new approach of choosing t...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
A robust data hiding scheme that embeds the watermark bits by quantizing the gradient directions of an image is proposed. By embedding the watermark in the angle, the watermark be...