2 search results - page 1 / 1 » Detecting spread spectrum watermarks using natural scene sta... |
ICIP
2005
IEEE
14 years 6 months ago
2005
IEEE
This paper presents novel techniques for detecting watermarks in images in a known-cover attack framework using natural scene models. Specifically, we consider a class of watermar...
IWDW
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. In this paper, the security of Dither Modulation Quantization Index Modulation schemes for digital images is analyzed. Both pixel and DCT coefficient quantization schemes...