Reduction of blocking effect in DCT-coded images based on a visual perception criterion.
François-Xavier CoudouxMarc GazaletPatrick CorlayPublished in: Signal Process. Image Commun. (1998)
Keyphrases
- visual perception
- coded images
- blocking artifacts
- image quality assessment
- low bit rate
- discrete cosine transform
- image quality
- compressed images
- post processing
- higher quality
- high frequency
- visual quality
- quantization noise
- reconstructed image
- dct domain
- dct coefficients
- image compression
- bit rate
- block matching
- image reconstruction
- visual attention
- compression algorithm
- transform domain
- error concealment
- computational complexity
- spatial domain
- compression ratio
- human visual system
- rate distortion
- video compression
- quality assessment
- filter bank
- feature vectors
- feature extraction