Optical watermarking technique robust to geometrical distortion in image.
Yasunori IshikawaKazutake UehiraKazuhisa YanakaPublished in: ISSPIT (2010)
Keyphrases
- watermarking technique
- geometric distortions
- digital images
- image watermarking
- watermarking scheme
- data hiding
- watermarking algorithm
- image authentication
- digital watermarking
- multiscale
- watermarked image
- compressed domain
- watermark detection
- image segmentation
- image data
- copyright protection
- input image
- digital content
- lossy compression
- image content
- digital image watermarking
- spread spectrum
- image representation
- digital watermark
- singular values
- high resolution
- test images
- watermark extraction