Improving visual quality of reversible data hiding by twice sorting.
Yang YangWeiming ZhangXiaocheng HuNenghai YuPublished in: Multim. Tools Appl. (2016)
Keyphrases
- reversible data hiding
- visual quality
- data hiding
- embedding capacity
- bit rate
- high frequency
- image quality
- hiding capacity
- reconstructed image
- prediction algorithm
- compression rate
- high capacity
- compressed images
- peak signal to noise ratio
- low bit rate
- human visual system
- pixel values
- perceptual quality
- error concealment
- visual information
- cover image
- coding scheme