FDCT-Based Digital Watermarking Algorithm for Gray Images.
Jiang YuLinsheng LiAnhong WangQichuan TianPublished in: CASoN (2010)
Keyphrases
- watermarking algorithm
- gray images
- barcode
- black and white
- jpeg compression
- signal processing
- wavelet domain
- binary images
- color images
- dct coefficients
- data compression
- gray level
- watermarking scheme
- low pass
- gray value
- wavelet decomposition
- color information
- preprocessing step
- multiscale
- wavelet transform
- discrete wavelet transform
- image acquisition
- local binary pattern
- gray scale
- edge detection
- digital images
- image data
- feature vectors
- pattern recognition
- video sequences
- high quality