47 search results - page 7 / 10 » Wavelet-based fragile watermarking scheme for image authenti... |
DICTA
2003
13 years 8 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...
Publication
The wide use of digital media during the past few years, has led to an increase of digital piracy and tampering. To deal with these problems, the concept of watermarking has been i...
Publication
This paper proposes a self-authentication scheme for color images, using a fragile data hiding method based on the Discrete Pascal Transform (DPT). The main contribution of this wo...
ICIP
2006
IEEE
14 years 8 months ago
2006
IEEE
Abstract-- This paper presents an authentication watermarking method which can localize the tampering regions in fine granularity. Unlike the previous block-wise Tampering-Localiza...
IWDW
2004
Springer
14 years 11 days ago
2004
Springer
: Invertible authentication techniques have been used in some special applications (such as medical or military) where original data can be recovered after authenticated. In this p...