Spatial Images Feature Extraction Based on Bayesian Nonlocal Means Filter and Improved Contourlet Transform.
Pengcheng HanJunping DuPublished in: J. Appl. Math. (2012)
Keyphrases
- nonlocal means
- image denoising
- feature extraction
- denoising methods
- image classification
- contourlet transform
- denoising
- spatial information
- image analysis
- gabor filters
- input image
- image data
- image processing
- image features
- object recognition
- denoising algorithm
- image registration
- wavelet transform
- edge detection
- multiscale
- gaussian noise
- translation invariant
- frequency domain
- test images
- multiresolution
- image retrieval
- texture classification
- wavelet domain
- discrete wavelet transform
- noisy images
- subband
- feature space