Improved CRT-based DCT domain watermarking technique with robustness against JPEG compression for digital media authentication.
Jagdish Chandra PatraA. K. KishoreCédric BornandPublished in: SMC (2011)
Keyphrases
- jpeg compression
- dct coefficients
- image authentication
- dct domain
- digital watermarking
- quantization step
- watermarked image
- watermarking technique
- watermark detection
- compressed domain
- watermarking algorithm
- image watermarking
- discrete cosine transform
- spatial domain
- digital content
- jpeg images
- watermarking scheme
- digital images
- transform domain
- wavelet domain
- watermark embedding
- spread spectrum
- copyright protection
- discrete wavelet transform
- human visual system
- feature vectors
- multimedia
- image compression
- motion vectors
- bitstream
- low frequency
- frequency domain
- image blocks
- image sequences
- additive noise
- digital libraries
- high quality