Keyphrases
- dct domain
- post processing
- spatial domain
- dct coefficients
- transform domain
- human visual system
- digital video
- discrete cosine transform
- compressed domain
- low pass filtering
- error correction
- image resizing
- compressed images
- low frequency
- jpeg compressed images
- quantization step
- video transcoding
- multiscale
- reference frame
- frequency domain
- preprocessing
- image blocks
- high frequency
- image quality
- digital images