A New Blind Image Watermarking Technique for Dual Watermarks Using Low-Frequency Band DCT Coefficients.
Ahmed Al-GindyAyman TawfikHussain Al-AhmadRami QahwajiPublished in: ICECS (2007)
Keyphrases
- watermarking technique
- compressed domain
- dct coefficients
- watermarking algorithm
- digital images
- image authentication
- jpeg compression
- watermark detection
- image watermarking
- data hiding
- dct domain
- digital watermarking
- watermarking scheme
- digital watermark
- copyright protection
- jpeg images
- watermarking method
- geometric distortions
- watermarked image
- image blocks
- spread spectrum
- lossy compression
- watermark extraction
- video analysis
- discrete cosine transform
- image data
- bitstream
- motion vectors
- multiscale
- inter frame
- low frequency
- pixel values
- frequency domain
- watermark embedding
- signal processing
- high frequency
- image segmentation
- high resolution
- spatial domain
- wavelet domain
- digital content