A Fast Scheme for Downsampling and Upsampling in the DCT Domain.
Rakesh DugadNarendra AhujaPublished in: ICIP (2) (1999)
Keyphrases
- dct domain
- dct coefficients
- spatial domain
- pixel domain
- transform domain
- post processing
- video watermarking
- low pass filtering
- linear transform
- compressed domain
- digital video
- discrete cosine transform
- human visual system
- compressed images
- low frequency
- image resizing
- video transcoding
- blocking artifacts
- image blocks
- high frequency
- watermark detection
- frequency domain
- quantization step
- reference frame
- block dct
- high quality
- visual quality
- spread spectrum
- wavelet transform
- feature vectors
- image processing
- computer vision