An Adaptive JPEG Steganographic Scheme Based on the Block Entropy of DCT Coefficients.
Chang WangJiangqun NiChuntao WangRuiyu ZhangPublished in: Int. J. Digit. Crime Forensics (2012)
Keyphrases
- dct coefficients
- dct domain
- jpeg images
- discrete cosine transform
- transform domain
- compressed domain
- jpeg compression
- feature vectors
- block boundaries
- image compression
- blocking artifacts
- watermark embedding
- coded images
- information hiding
- image blocks
- macroblock
- spatial domain
- jpeg compressed images
- compressed images
- discrete cosine transformation
- spread spectrum
- cover image
- secret message
- watermarking algorithm
- low frequency
- digital images
- video analysis
- data hiding
- compression algorithm
- filter bank
- motion vectors
- subband