Watermark Embedding for Multiscale Error Diffused Halftone Images by Adopting Visual Cryptography.
Yuanfang GuoOscar C. AuKetan TangPublished in: Int. J. Digit. Crime Forensics (2015)
Keyphrases
- halftone images
- watermark embedding
- multiscale
- data hiding
- spread spectrum
- wavelet domain
- inverse halftoning
- human visual system
- error diffusion
- gray scale
- error correction
- watermarking scheme
- spatial domain
- black and white
- wavelet transform
- copyright protection
- original images
- image segmentation
- image processing
- visual quality
- image quality
- perceptual quality
- watermarking algorithm
- natural images
- digital watermarking
- edge detection
- wavelet coefficients
- wavelet decomposition
- human perception
- jpeg images
- denoising
- watermarking technique
- gray images
- transform domain
- gray level
- discrete wavelet transform
- local binary pattern
- filter bank