Random grids-based visual secret sharing with improved visual quality via error diffusion.
Xuehu YanShen WangAhmed A. Abd El-LatifXiamu NiuPublished in: Multim. Tools Appl. (2015)
Keyphrases
- visual quality
- error diffusion
- image quality
- human visual system
- bit rate
- halftone images
- reconstructed image
- high frequency
- low bit rate
- quantization error
- peak signal to noise ratio
- image data
- compressed images
- coded images
- display devices
- high quality
- gray scale
- data hiding
- perceptual quality
- compression ratio
- visual information
- post processing
- quality metrics
- denoising
- secret sharing
- contrast enhancement
- digital images