Enlargement and reduction of image/video via discrete cosine transform pair, part 1: novel three-dimensional discrete cosine transform and enlargement.
Shu-Mei GuoChen-Bang LiChia-Wei ChenYueh-Ching LiaoJason Sheng-Hong TsaiPublished in: J. Electronic Imaging (2007)
Keyphrases
- discrete cosine transform
- jpeg images
- image blocks
- blocking artifacts
- discrete fourier transform
- coded images
- image compression
- dct coefficients
- three dimensional
- projections onto convex sets
- transform domain
- projection onto convex sets
- dct domain
- filter bank
- image data
- multiscale
- just noticeable distortion
- fast fourier transform
- lossy compression
- compressed images
- key frames
- wavelet transform
- multiresolution
- signal processing
- image representation
- perceptual quality
- multimedia
- test images
- subband