23 search results - page 3 / 5 » Removable visible image watermarking algorithm in the discre... |
GECCO
2005
Springer
13 years 10 months ago
2005
Springer
We propose an evolutionary algorithm for the enhancement of digital semi-fragile watermaking based on the manipulation of the image discrete cosine transform (DCT). The algorithm ...
ISCAS
2003
IEEE
13 years 10 months ago
2003
IEEE
In this paper, a robust and efficient digital image watermarking algorithm using the fast Hadamard transform (FHT) is proposed for the copyright protection of digital images. This...
ICIP
2001
IEEE
14 years 6 months ago
2001
IEEE
In lossy image compression schemes utilizing the discrete cosine transform (DCT), quantization of the DCT coefficients introduces error in the image representation and a loss of s...
SMI
2003
IEEE
13 years 10 months ago
2003
IEEE
This paper proposes a digital watermarking algorithm for 2D vector digital maps. The watermark is a robust, informed-detection watermark to be used to prevent such abuses as an in...
ICMCS
2006
IEEE
13 years 11 months ago
2006
IEEE
The distribution of the wavelet coefficients in 2-D discrete wavelet transform (DWT) subspaces can be well described by a Gaussian mixture statistical model. In this paper, a secr...