Bi-directional Pixel-Value Differencing Approach for Steganography.
HimakshiHarsh Kumar VermaRavindra Kumar SinghCharan Kamaljit SinghPublished in: SocProS (1) (2013)
Keyphrases
- bi directional
- pixel values
- cover image
- secret data
- image quality
- gray level
- data hiding
- median filter
- data embedding
- weighted sum
- spread spectrum
- information hiding
- associative memory
- spatial domain
- english chinese
- probability density function
- secret key
- background subtraction
- error correction
- image data
- prior knowledge
- neural network