Image denoising via gradient approximation by upwind scheme.
Rong-Hong HuangXiao-Hong WangPublished in: Signal Process. (2008)
Keyphrases
- image denoising
- denoising
- noisy images
- natural images
- total variation
- partial differential equations
- image processing
- bilateral filtering
- approximation schemes
- wavelet domain
- additive gaussian noise
- finite difference
- wavelet coefficients
- nonlocal means
- fidelity term
- denoising algorithm
- bilateral filter
- image inpainting
- wavelet domain hidden markov tree
- augmented lagrangian
- total variation regularization
- undecimated wavelet transform
- noise removal
- image deblurring
- input image
- multiresolution
- pairwise
- multiscale
- feature extraction