Localization and text sequence restoration using noise pixels in binary document image watermarking.
Niladri B. PuhanAnthony T. S. HoFarook SattarPublished in: J. Electronic Imaging (2009)
Keyphrases
- image watermarking
- additive noise
- geometric attacks
- geometric distortions
- jpeg compression
- image restoration
- noise level
- gaussian noise
- noisy images
- copyright protection
- random variables
- spatial domain
- discrete wavelet transform
- watermarking algorithm
- image sequences
- digital watermarking
- lossy compression
- watermarking scheme
- gray level images
- signal to noise ratio
- maximum likelihood
- image compression
- input image
- image registration