Reduction of blocking artifacts by adaptive postfiltering of transform coefficients.
Tao ChenHong Ren WuBin QiuPublished in: VCIP (2000)
Keyphrases
- blocking artifacts
- reconstructed image
- transform coefficients
- image reconstruction
- image quality
- transform domain
- image compression
- energy compaction
- post processing
- visual quality
- discrete cosine transform
- higher quality
- dct domain
- bit rate
- spatial resolution
- compressed images
- compression ratio
- reconstruction error
- dct coefficients
- high frequency
- low bit rate
- test images
- spatial domain
- subband
- image quality assessment
- high quality
- image processing
- peak signal to noise ratio
- multispectral
- wavelet transform
- block matching
- image data
- preprocessing
- ground truth