Deblocking of block-transform compressed images using weighted sums of symmetrically aligned pixels.
Amir AverbuchAlon SchclarDavid L. DonohoPublished in: IEEE Trans. Image Process. (2005)
Keyphrases
- compressed images
- weighted sums
- blocking artifacts
- block boundaries
- reconstructed image
- image blocks
- transform coefficients
- blocking effect
- discrete cosine transform
- transform coding
- image compression
- jpeg images
- dct domain
- weighted sum
- visual quality
- dct coefficients
- image reconstruction
- image quality
- compression ratio
- bitstream
- transform domain
- potential functions
- peak signal to noise ratio
- input image
- weight update
- compressed domain
- post processing
- coding scheme
- wavelet transform
- bit rate
- markov chain
- regression trees
- low bit rate
- image regions
- compression algorithm