Keyphrases
- frequency domain
- filter design
- low pass
- color filter array
- denoising
- fourier transform
- spatial domain
- image enhancement
- low frequency
- subband
- image restoration
- feature extraction
- fourier domain
- low pass filter
- nonlinear filters
- digital camera
- frequency response
- fast fourier transform
- image sensor
- filter bank
- color images
- wavelet domain
- image denoising
- fir filters
- discrete wavelet transform
- discrete fourier transform
- high frequency
- natural images
- input image