Digital image watermarking technique based on adaptive median filter and HL sub-band of two-stage DWT.
Rajeev KumarPiyush Kumar SinghJainath YadavPublished in: Int. J. Comput. Aided Eng. Technol. (2023)
Keyphrases
- digital images
- discrete wavelet transform
- watermarking technique
- median filter
- digital watermarking
- subband
- image watermarking
- multiresolution
- lossy compression
- lifting scheme
- wavelet transform
- copyright protection
- filter bank
- wavelet coefficients
- image enhancement
- wavelet domain
- high frequency
- low frequency
- low pass
- noise reduction
- image compression
- wavelet decomposition
- jpeg compression
- bit rate
- frequency domain
- multiscale
- feature vectors
- watermarking algorithm
- data hiding
- watermarked image
- image authentication
- watermarking scheme
- palmprint
- structuring elements
- image fusion
- denoising
- pixel values
- image denoising
- edge detection