Keyphrases
- feature set
- denoising
- gaussian noise
- feature representation
- classification accuracy
- feature vectors
- feature selection
- translation invariant
- feature space
- feature extraction
- denoising methods
- wavelet shrinkage
- edge preservation
- image denoising
- total variation
- directional filter banks
- spatial correlation
- noise removal
- hard thresholding
- input image
- contourlet transform
- wavelet denoising
- noise sensitivity
- higher peak signal to noise ratio
- image features
- spatial information
- noise reduction
- noisy images
- noise model
- image retrieval
- smooth regions
- image classification
- removing noise
- spatial frequency
- object recognition
- multiscale
- wavelet domain
- high pass
- edge detection
- spatial features
- morphological filters
- preprocessing stage
- image processing
- image registration
- denoising algorithm
- discriminative features
- natural images
- image restoration
- noise level
- image structure
- wavelet transform
- discriminatory power
- anisotropic diffusion
- image segmentation
- spatial relationships
- signal to noise ratio
- computer vision