Image denoising via 2D dictionary learning and adaptive hard thresholding.
Xuande ZhangXiang-Chu FengWeiwei WangGuojun LiuPublished in: Pattern Recognit. Lett. (2013)
Keyphrases
- image denoising
- dictionary learning
- hard thresholding
- denoising
- sparse coding
- natural images
- sparse representation
- noisy images
- total variation
- wavelet domain
- wavelet denoising
- wavelet coefficients
- spatially adaptive
- partial differential equations
- image processing
- image deblurring
- wavelet shrinkage
- image patches
- wavelet thresholding
- signal processing
- higher order
- nonlinear diffusion
- multiscale
- denoising methods
- denoising algorithm
- gaussian noise
- noise suppression
- input image
- test images
- maximum likelihood
- image classification