909 search results - page 9 / 182 » Reversible data hiding |
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
Most of the current speech transmission systems are only able to deliver speech signals in a narrow frequency band. This narrowband speech is characterized by a thin and muffled ...
IJACTAICIT
2010
13 years 5 months ago
2010
This paper presents an improved adaptive algorithm for enhanced data hiding under HH-subband Haar Wavelet coefficients of a gray scale host image. The algorithm uses an optimal se...
TCSV
2008
13 years 7 months ago
2008
Recently, among various data hiding techniques, a new subset, lossless data hiding, has received increasing interest. Most of the existing lossless data hiding algorithms are, howe...
ISCAS
2008
IEEE
14 years 2 months ago
2008
IEEE
— From copyright protection to error concealment, video data hiding has found usage in a great number of applications. Recently proposed applications such as privacy data preserv...
ICIP
2004
IEEE
14 years 9 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...