A direct computation of DCT coefficients for a signal block taken from two adjacent blocks.
Weidong KouTore FjällbrantPublished in: IEEE Trans. Signal Process. (1991)
Keyphrases
- dct coefficients
- discrete cosine transform
- low frequency
- dct domain
- frequency domain
- high frequency
- transform domain
- jpeg compression
- compressed domain
- signal processing
- image blocks
- feature vectors
- blocking artifacts
- jpeg images
- coded images
- watermarking algorithm
- spatial domain
- discrete cosine transformation
- macroblock
- motion compensation
- subband
- image compression
- digital images
- wavelet transform
- pattern recognition
- visual quality
- motion vectors
- multiresolution
- multiscale