Keyphrases
- image watermarking
- moment invariants
- pattern recognition
- affine transformation
- jpeg compression
- zernike moments
- feature vectors
- fourier descriptors
- discrete wavelet transform
- image normalization
- geometric distortions
- additive noise
- copyright protection
- digital images
- watermarking algorithm
- digital watermarking
- image reconstruction
- computer vision
- efficient implementation
- d objects
- image retrieval
- watermarking technique
- lossy compression
- image processing