Reliable image/video watermark retrieval in the presence of lossy compression.
Qing ChenHenri MaîtrePublished in: EUSIPCO (2005)
Keyphrases
- lossy compression
- watermarking technique
- image watermarking
- digital watermark
- image quality
- image retrieval
- image authentication
- jpeg images
- watermarking algorithm
- lossless compression
- image compression
- gray level images
- bit rate
- image data
- digital images
- image processing operations
- geometric distortions
- input image
- digital watermarking
- pattern matching
- watermarked image
- multiscale
- jpeg compression
- image classification
- image features
- low bit rate
- human visual system
- spread spectrum
- video sequences
- data hiding
- visual quality
- copyright protection
- video data
- gray level
- image representation
- visual features
- pixel values
- watermarking method
- watermark detection
- multimedia
- gray scale
- image denoising
- image blocks
- dct coefficients
- compression ratio
- watermarking scheme