Iterative spatial domain 2-D signal decomposition for effectual image up-scaling.
Aditya AcharyaSukadev MeherPublished in: Multim. Tools Appl. (2021)
Keyphrases
- spatial domain
- frequency domain
- high frequency components
- additive noise
- projections onto convex sets
- spectral domain
- transform domain
- log polar
- transformed image
- low frequency
- fourier domain
- watermarked image
- temporal domain
- wavelet domain
- edge direction
- enhanced image
- secret message
- input image
- image data
- discrete cosine transformation
- fourier transform
- high frequency
- cover image
- dct domain
- data hiding
- multiscale
- signal processing
- image segmentation
- blurred images
- secret image
- jpeg images
- image interpolation
- image blocks
- test images
- post processing
- image resizing
- image enhancement
- image authentication
- gray level
- motion estimation
- high resolution
- similarity measure
- feature extraction
- face recognition
- three dimensional