Keyphrases
- high frequency
- low frequency
- high resolution
- image features
- high frequency components
- high frequencies
- blocking artifacts
- wavelet decomposition
- input image
- visual quality
- subband
- wavelet transform
- low and high frequency
- contourlet transform
- multiscale
- low level
- frequency domain
- low pass
- extracted features
- high pass
- multi resolution analysis
- feature extraction
- spatial information
- image segmentation
- wavelet coefficients
- feature vectors
- image analysis
- single image
- image representation
- frequency band
- image data
- low bit rate coding
- similarity measure
- feature space
- super resolution
- contrast enhancement
- discrete wavelet transform
- wavelet domain
- spatial domain
- feature set
- subband decomposition
- pixel values