A Secure and High Visual-Quality Framework for Medical Images by Contrast-Enhancement Reversible Data Hiding and Homomorphic Encryption.
Yang YangXingxing XiaoXue CaiWeiming ZhangPublished in: IEEE Access (2019)
Keyphrases
- visual quality
- medical images
- contrast enhancement
- reversible data hiding
- high frequency
- bit rate
- image quality
- human visual system
- compressed images
- reconstructed image
- color restoration
- error concealment
- image enhancement
- color images
- data hiding
- peak signal to noise ratio
- multiscale
- visual information
- subband
- low contrast
- compression ratio
- error correction
- gray level
- image data
- high resolution