A Comparative Study of Discrete Cosine Transformation, Haar Transformation, Simultaneous Encryption and Compression Techniques.
Joy BhattacharjeePublished in: ICDIP (2009)
Keyphrases
- discrete cosine transformation
- image authentication
- image compression
- spatial domain
- dct coefficients
- digital watermark
- adaptive quantization
- jpeg images
- public key
- low bit rate
- frequency domain
- continuous tone images
- information hiding
- jpeg compression
- transform domain
- image content
- watermarking scheme
- lossy compression
- digital watermarking
- discrete cosine transform
- discrete wavelet transform
- compression ratio
- copyright protection
- wavelet filters
- authentication scheme
- image encryption
- security analysis
- digital signature
- wavelet domain
- wavelet transform
- feature extraction
- wavelet coefficients
- subband
- data compression
- video sequences