Image Arbitrary-Ratio Down- and Up-Sampling Scheme Exploiting DCT Low Frequency Components and Sparsity in High Frequency Components.
Meng ZhangTinghuan ChenXuchao ShiPeng CaoPublished in: IEICE Trans. Inf. Syst. (2016)
Keyphrases
- high frequency components
- spatial domain
- high frequency
- blocking artifacts
- low frequency
- image features
- input image
- image data
- image enlargement
- transform domain
- noisy images
- multiscale
- discrete cosine transform
- test images
- image quality
- random noise
- edge detection
- image regions
- frequency domain
- image blocks
- image processing