Gray-level image denoising with an improved weighted sparse coding.
Yang OuJianqiao LuoBailin LiM. N. S. SwamyPublished in: J. Vis. Commun. Image Represent. (2020)
Keyphrases
- gray level
- image denoising
- sparse coding
- natural images
- input image
- denoising
- noisy images
- image patches
- total variation
- partial differential equations
- multiscale
- higher order
- object recognition
- co occurrence
- image segmentation
- texture analysis
- shift invariant
- gray level images
- texture images
- sparse representation
- unsupervised learning
- texture features
- thresholding method
- test images
- linear combination
- wavelet domain
- image prior
- wavelet coefficients
- pixel values
- image representation
- binary images
- image restoration
- bayesian networks
- high quality