Difference expansion based reversible watermarking algorithms for copyright protection of images: state-of-the-art and challenges.
Lakshmi H. R.Surekha BorraPublished in: Int. J. Speech Technol. (2021)
Keyphrases
- copyright protection
- watermarking algorithm
- geometric attacks
- watermarking scheme
- digital watermarking
- lossy compression
- digital images
- image watermarking
- image data
- digital image watermarking
- jpeg compression
- barcode
- multimedia content
- multimedia data
- geometric distortions
- watermarking technique
- signal processing
- watermark detection
- input image
- wavelet domain
- spread spectrum
- watermark embedding
- computer vision
- test images
- watermarked image
- image authentication
- image segmentation