基于伪Zernike矩和Contourlet变换的抗几何攻击图像水印算法 (Anti-geometric-attack Watermarking Algorithm Based on Pseudo-Zernike Moments and Contourlet Transform).
Dandan ZhuLizhi LvPublished in: 计算机科学 (2016)
Keyphrases
- contourlet transform
- pseudo zernike moments
- watermarking algorithm
- wavelet domain
- zernike moments
- discrete wavelet transform
- multiscale
- subband
- jpeg compression
- multiresolution
- watermarked image
- moment invariants
- image representation
- image denoising
- wavelet transform
- high frequency
- translation invariant
- wavelet coefficients
- low frequency
- image fusion
- signal processing
- feature vectors
- texture images
- digital watermarking
- copyright protection
- denoising
- legendre moments
- high order
- watermarking scheme
- dct coefficients
- frequency domain
- orthogonal moments
- shape descriptors
- bit rate
- wavelet decomposition
- rotation invariant
- spatial domain
- image reconstruction
- pattern recognition
- image segmentation
- digital images
- image compression
- high resolution
- watermarking technique
- image retrieval
- invariant features
- natural images
- image features
- affine transformation
- human visual system
- remote sensing