A Novel Gray Image Watermarking Scheme.
Yongqiang ChenYanqing ZhangHanping HuHefei LingPublished in: J. Softw. (2011)
Keyphrases
- watermarking scheme
- gray images
- color images
- binary images
- data compression
- gray level
- black and white
- preprocessing step
- color information
- copyright protection
- local binary pattern
- error correction
- gray value
- low pass
- edge detection
- watermarking algorithm
- gray scale
- watermark embedding
- reversible watermarking
- watermarking technique
- spread spectrum
- texture analysis
- single image
- high quality
- low contrast
- image restoration
- multiscale