Keyphrases
- watermarking algorithm
- jpeg compression
- lossy compression
- dct coefficients
- image watermarking
- file size
- wavelet domain
- signal processing
- jpeg images
- watermarking scheme
- spread spectrum
- image authentication
- dct domain
- copyright protection
- digital watermarking
- digital image watermarking
- watermarking technique
- geometric distortions
- digital images
- geometric attacks
- discrete wavelet transform
- compression ratio
- image quality
- digital watermark
- pattern recognition
- low bit rate
- compression algorithm
- image coding
- image sequences