An Audio Watermarking Algorithm Using Group Quantization of DCT Coefficients.
Li DeWenji QuanJongWeon KimPublished in: FGIT (2012)
Keyphrases
- watermarking algorithm
- dct coefficients
- signal processing
- jpeg compression
- dct domain
- watermark embedding
- jpeg images
- image watermarking
- copyright protection
- discrete cosine transform
- watermarking scheme
- wavelet domain
- spread spectrum
- lossy compression
- digital watermarking
- image processing
- multimedia
- transform domain
- visual information
- pattern recognition
- watermarking technique
- watermark detection
- compressed images
- image blocks