Bidirectional conversion between DCT coefficients of blocks and their subblocks.
Zhihua HeMaja BystromS. Hamid NawabPublished in: IEEE Trans. Signal Process. (2005)
Keyphrases
- dct coefficients
- discrete cosine transform
- dct domain
- transform domain
- jpeg compression
- feature vectors
- compressed domain
- jpeg images
- watermarking algorithm
- low frequency
- quadtree
- blocking artifacts
- image compression
- macroblock
- discrete cosine transformation
- frequency domain
- image blocks
- data structure
- inter frame
- image segmentation
- spatial domain
- high frequency
- rate distortion
- video coding
- multiscale
- high quality