Sciweavers

262 search results - page 13 / 53
» DWT-DCT-SVD based watermarking
Sort
View
ICIP
2002
IEEE
15 years 11 months ago
Affine transformation resistant watermarking based on image normalization
Geometric attacks are among the most challenging problems in present day watermarking. Such attacks are very simple to implement yet they can defeat most of the existing watermark...
Ping Dong, Nikolas P. Galatsanos
ICMCS
2005
IEEE
106views Multimedia» more  ICMCS 2005»
15 years 3 months ago
Watermarking based Image Authentication using Feature Amplification
In a typical content and watermarking based image authentication approach, a feature is extracted from the given image, and then embedded back into the image using a watermarking ...
Shuiming Ye, Ee-Chien Chang, Qibin Sun
ICMCS
2005
IEEE
101views Multimedia» more  ICMCS 2005»
15 years 3 months ago
Rotation, scaling, and translation-invariant multi-bit watermarking based on log-polar mapping and discrete Fourier transform
This paper proposes an RST-invariant multi-bit watermarking system based on LPM and DFT. This system embeds the watermark in a rotation and translation invariant domain obtained b...
Wilson W. L. Fung, Akiomi Kunisa
WSCG
2004
115views more  WSCG 2004»
14 years 10 months ago
A Public-key Asymmetric Robust Watermarking Algorithm Based on Signal with Special Correlation Characteristic
A public-key asymmetric robust watermarking algorithm based on signal with special correlation characteristic is proposed in this paper. This algorithm is designed to permit pubic...
Yanjun Hu, Li Gao, Xiaoping Ma, Zhigeng Pan, Li Li
ICMCS
2006
IEEE
128views Multimedia» more  ICMCS 2006»
15 years 3 months ago
Image Watermarking based on Genetic Algorithm
In order to improve the robustness and imperceptibleness of the image spread spectrum watermark algorithm, a new approach for optimization in 8×8 DCT domain using genetic algorit...
Zhicheng Wei, Hao Li, Jufeng Dai, Sashuang Wang