Efficient block-based coding of noise images by combining pre-filtering and DCT.
Sung Deuk KimSung Kyu JangMyung Jun KimJong Beom RaPublished in: ISCAS (4) (1999)
Keyphrases
- pre filtering
- high contrast
- image database
- image features
- gaussian noise
- input image
- noise sensitivity
- image noise
- image data
- discrete cosine transform
- jpeg images
- noise free
- image retrieval
- test images
- geometric distortions
- imaging process
- image structure
- signal to noise ratio
- transform coefficients
- block size
- transform domain
- high frequency
- coded images
- wavelet coding
- block dct
- spatial correlation
- image blocks
- spatial domain
- noise reduction
- coding scheme
- subband
- image registration
- optical flow