356 search results - page 40 / 72 » Foveated image watermarking |
SPIESR
1998
13 years 11 months ago
1998
An approach to embedding gray scale images using a discrete wavelet transform is proposed. The proposed scheme enables using signature images that could be as much as 25% of the h...
ICIP
2007
IEEE
14 years 1 months ago
2007
IEEE
Sensitivity analysis attacks present a serious threat to the security of popular spread spectrum watermarking schemes. Randomization of the detector is thought to increase the imm...
MMSEC
2006
ACM
14 years 3 months ago
2006
ACM
In this paper, we introduce to the special domain of image annotation watermarking, based on embedding of hierarchical data related to objects into user-selected areas on an image...
IH
2007
Springer
14 years 4 months ago
2007
Springer
Abstract. Hard decisions constitute the major problem in digital watermarking applications, especially when content adaptive embedding methods are used. Soft-decision decoding, on ...
SSWMC
2004
13 years 11 months ago
2004
This paper proposes a novel method for content-based watermarking based on feature points of an image. At each feature point, watermark is embedded after affine normalization acco...