Print-scan invariant text image watermarking for hardcopy document authentication.
Lina TanKai HuXinmin ZhouRongyuan ChenWeijin JiangPublished in: Multim. Tools Appl. (2019)
Keyphrases
- image watermarking
- geometric distortions
- data hiding
- digital watermarking
- watermarking technique
- lossy compression
- keywords
- copyright protection
- watermarking algorithm
- discrete wavelet transform
- digital images
- jpeg compression
- geometric transformations
- error correction
- affine invariant
- watermarking scheme
- image processing
- watermarked image
- feature extraction