Improved image copyright protection scheme exploiting visual cryptography in wavelet domain.
Alessio MeneghettiGiulia BoatoFrancesco G. B. De NatalePublished in: Image Processing: Algorithms and Systems (2013)
Keyphrases
- wavelet domain
- multiscale
- wavelet decomposition
- spatial domain
- protection scheme
- input image
- wavelet coefficients
- image data
- denoising
- wavelet transform
- image segmentation
- secret image
- shift invariant
- multiresolution
- subband
- image denoising
- low level
- high resolution
- face recognition
- visual cryptography
- pixel values
- natural images
- human visual system
- quality assessment
- discrete wavelet transform
- coding scheme
- image quality
- watermark embedding
- image classification
- edge detection