An efficient JPEG steganographic scheme based on the block entropy of DCT coefficients.
Chang WangJiangqun NiPublished in: ICASSP (2012)
Keyphrases
- dct coefficients
- dct domain
- jpeg images
- discrete cosine transform
- transform domain
- jpeg compression
- compressed domain
- compressed images
- spatial domain
- watermarking algorithm
- coded images
- image compression
- feature vectors
- blocking artifacts
- block boundaries
- image blocks
- jpeg compressed images
- information hiding
- spread spectrum
- filter bank
- bit plane
- block dct
- image authentication
- discrete cosine transformation
- low frequency
- digital images
- video analysis
- computational complexity
- similarity measure