Reversible image data hiding based on gradient adjusted prediction.
Mehdi FallahpourPublished in: IEICE Electron. Express (2008)
Keyphrases
- data hiding
- data hiding scheme
- tamper detection
- secret message
- embedded image
- input image
- edge detection
- image data
- high capacity
- watermarking technique
- multiscale
- cover image
- reversible data hiding
- image segmentation
- prediction algorithm
- spread spectrum
- image authentication
- secret data
- image quality
- high resolution
- error correction
- pixel values
- halftone images
- spatial domain
- image reconstruction
- gray scale
- block truncation coding
- image scrambling