Weighted visual cryptographic scheme with improved image quality.
Xuehu YanFeng LiuWei Qi YanGuozheng YangYuliang LuPublished in: Multim. Tools Appl. (2020)
Keyphrases
- image quality
- high image quality
- standard test images
- visual quality
- image data
- human visual system
- hash functions
- reconstructed image
- image resolution
- compression ratio
- high quality
- pixel values
- reconstructed image quality
- visual information
- quality assessment
- bit rate
- voting scheme
- high compression ratio
- distorted images
- public key encryption
- image quality assessment
- smart card
- key management
- digital signature
- quality metrics
- halftoning algorithm
- image reconstruction
- visual features
- low level
- color images