Keyphrases
- power spectra
- bandpass
- high pass
- frequency domain
- low frequency
- median filter
- filtering method
- noise removal
- filtering process
- noise filtering
- noise reduction
- noise level
- random noise
- missing data
- information filtering
- high frequency
- salt pepper
- low pass
- gaussian filter
- noise detection
- switching median filter
- linear minimum mean square error
- image noise
- neural network
- noise model
- additive noise
- post processing
- noise free
- nonlinear filters
- signal to noise ratio
- frequency response
- spectral images
- image restoration
- wavelet transform
- feature extraction