Hybrid secure and robust image watermarking scheme based on SVD and sharp frequency localized contourlet transform.
Esmaeil NajafiKhaled LoukhaoukhaPublished in: J. Inf. Secur. Appl. (2019)
Keyphrases
- image watermarking scheme
- contourlet transform
- singular value decomposition
- low frequency
- wavelet domain
- image denoising
- multiscale
- multiresolution
- high frequency
- watermarking scheme
- denoising
- image watermarking
- subband
- least squares
- image segmentation
- computer vision
- wavelet transform
- image retrieval
- object recognition
- high quality
- feature extraction