A low-frequency construction watermarking based on histogram.
Hang-Yu FanZhe-Ming LuYongxiang LiuPublished in: Multim. Tools Appl. (2020)
Keyphrases
- low frequency
- high frequency
- frequency domain
- wavelet transform
- wavelet analysis
- subband
- spatial frequency
- discrete wavelet transform
- wavelet coefficients
- original images
- frequency band
- fusion rules
- copyright protection
- watermarking scheme
- visual quality
- electromagnetic fields
- digital images
- high resolution
- low pass
- spatial domain
- dct domain
- high frequency components
- low and high frequency
- feature extraction
- data hiding
- watermarking algorithm
- edge information
- image reconstruction
- image compression
- multiscale