49 search results - page 1 / 10 » Non-uniform quantizer design for image data hiding |
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
Most quantizer based data hiding schemes use uniform quantizer, which is not optimal if the host signal is not uniformly distributed. In this paper, we design a quantizer that is ...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
Quantization index modulation (QIM) techniques have been gaining popularity in the data hiding community because of their robustness and information-theoretic optimality against a...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
Information theoretic tools lead to the design and analysis of new blind data hiding methods. A novel quantizationbased blind method, which uses trellis coded quantization, is pro...
HIS
2009
13 years 2 months ago
2009
In this paper, we propose a vector quantization (VQ) -based information hiding scheme that cluster the VQ codeowrds according the codewords' relation on Voronoi Diagram (VD). ...
ICIP
2002
IEEE
14 years 6 months ago
2002
IEEE
In this paper we propose a novel data hiding procedure called Quantized Projection (QP), that combines elements from quantization (i.e. Quantization Index Modulation, QIM) and spr...