A reversible watermarking scheme for two-dimensional CAD engineering graphics based on improved difference expansion.
Fei PengYu-Zhou LeiMin LongXingming SunPublished in: Comput. Aided Des. (2011)
Keyphrases
- reversible watermarking
- watermarking scheme
- prediction error
- computer aided design
- computer graphics
- jpeg compression
- design process
- copyright protection
- watermarking algorithm
- error correction
- digital watermarking
- image watermarking scheme
- video watermarking
- robust watermarking scheme
- geometric distortions
- jpeg images
- spread spectrum
- watermark embedding
- geometric attacks