262 search results - page 26 / 53 » DWT-DCT-SVD based watermarking |
DICTA
2003
14 years 11 months ago
2003
Imperfect transmission of block-coded images often causes lost blocks. These blocks may contain very important information of image. In this paper a new error concealment scheme is...
92
Voted
IJIT
2004
14 years 11 months ago
2004
In this paper we investigate the watermarking authentication when applied to medical imagery field. We first give an overview of watermarking technology by paying attention to frag...
76
Voted
IH
1999
Springer
15 years 1 months ago
1999
Springer
Abstract. In this paper we present a new efficient watermarking scheme for images. The basic idea of our method is to alter the colors of the given image in a suitable but imperce...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
In this paper we present a generic content-based solution targeting at authenticating image in a semi-fragile way, which integrates watermarking-based approach with signature-base...
78
Voted
MMSEC
2006
ACM
15 years 3 months ago
2006
ACM
Current zero-knowledge watermark detectors are based on a linear correlation between the asset features and a given secret sequence. This detection function is susceptible of bein...