Digital image watermarking technique based on adaptive median filter and HL sub-band of two-stage DWT.
Piyush Kumar SinghJainath YadavRajeev KumarPublished in: Int. J. Comput. Aided Eng. Technol. (2023)
Keyphrases
- discrete wavelet transform
- digital images
- digital watermarking
- median filter
- watermarking technique
- subband
- image watermarking
- multiresolution
- wavelet coefficients
- wavelet domain
- copyright protection
- wavelet transform
- high frequency
- jpeg compression
- image enhancement
- lossy compression
- lifting scheme
- filter bank
- bit rate
- wavelet decomposition
- low pass
- noise reduction
- low frequency
- image compression
- watermarking algorithm
- frequency domain
- image authentication
- image fusion
- feature vectors
- compressed domain
- denoising
- motion vectors
- data hiding
- pixel values
- computer vision
- spatial domain
- watermarking scheme
- human visual system
- video sequences
- multiscale
- image sequences