An NPT Watermarking Algorithm Using Wavelet Image Combination.
Ji-Hua GuYun ShangBei-jing HuangPublished in: IITSI (2010)
Keyphrases
- watermarking algorithm
- image watermarking
- watermarking technique
- transformed image
- multiscale
- wavelet domain
- wavelet decomposition
- geometric attacks
- jpeg compression
- embedded image
- geometric distortions
- image authentication
- lossy compression
- wavelet coefficients
- signal processing
- input image
- image data
- image retrieval
- image classification
- digital images
- image segmentation
- wavelet transform
- discrete wavelet transform
- watermarking scheme
- watermarking method
- copyright protection
- spread spectrum
- multiresolution
- high resolution
- pixel values
- test images
- watermark detection
- similarity measure
- feature extraction
- watermarked image
- digital watermarking
- low pass
- additive noise
- data hiding
- frequency domain