A prediction error based reversible data hiding scheme in encrypted image using block marking and cover image pre-processing.
Shaiju PanchikkilVazhora Malayil ManikandanPublished in: Multim. Tools Appl. (2024)
Keyphrases
- stego image
- cover image
- prediction error
- image blocks
- reversible data hiding
- hiding capacity
- data hiding
- preprocessing
- image data
- multiscale
- spatial domain
- pixel values
- post processing
- input image
- secret image
- discrete cosine transform
- high capacity
- transform domain
- binary images
- low frequency
- digital images
- secret data
- image processing
- bit rate
- spread spectrum
- blocking artifacts
- watermarking technique