Blocking artefacts reduction based on a ripple matrix permutation image of high-frequency images in the wavelet domain.
Xiuli DuJinting LiuWei ZhangYana LvPublished in: IET Image Process. (2021)
Keyphrases
- high frequency
- wavelet domain
- high frequency components
- low frequency
- high frequencies
- wavelet coefficients
- speckle noise
- input image
- low and high frequency
- wavelet decomposition
- image data
- wavelet transformation
- wavelet transform
- discrete wavelet transform
- subband
- wavelet domain hidden markov tree
- spatial domain
- image features
- multiscale
- high resolution
- high pass
- image retrieval
- shift invariant
- image classification
- low pass
- image analysis
- pixel values
- denoising algorithm
- image denoising
- visual quality
- source images
- multiresolution
- denoising
- sar images
- edge detection
- blocking artifacts
- segmentation algorithm
- gaussian noise
- contrast enhancement
- contourlet transform
- fused image
- watermarking algorithm
- order statistics filters
- image quality
- natural images
- filter bank
- human visual system
- pixel wise
- motion estimation
- transform domain
- image compression
- gray level