226 search results - page 3 / 46 » Robust Embedded Data from Wavelet Coefficients |
JDCTA
2010
13 years 2 months ago
2010
Perceptual transparency and robustness are conflicting requirements. To ensure the security of the watermarkhow to choose the embedding position and intensity is a difficult probl...
DCC
2003
IEEE
14 years 7 months ago
2003
IEEE
: This paper proposes a new algorithm referred to as the Wavelet Packet-based Embedded Block coding (WPEB) scheme for SAR data compression. This algorithm combines the following pr...
TCSV
2008
13 years 7 months ago
2008
Look-up table (LUT)-based data hiding is a simple and efficient technique to hide secondary information (watermark) into multimedia work for various applications such as copyright ...
ICIP
2002
IEEE
14 years 9 months ago
2002
IEEE
In this paper we introduce the DCT-mod2 facial feature extraction technique which utilizes polynomial coefficients derived from 2-D DCT coefficients of spatially neighbouring bloc...
ICIP
2003
IEEE
14 years 9 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 ...