Improving the visual quality of random grid-based visual secret sharing via error diffusion.
Xiaotian WuTong LiuWei SunPublished in: J. Vis. Commun. Image Represent. (2013)
Keyphrases
- visual quality
- error diffusion
- image quality
- human visual system
- bit rate
- reconstructed image
- high frequency
- halftone images
- perceptual quality
- quantization error
- compressed images
- image data
- display devices
- low bit rate
- gray scale
- secret sharing
- contrast enhancement
- high quality
- peak signal to noise ratio
- gray level
- bitstream
- quality metrics
- computer vision
- compression ratio
- video quality
- high level