Sharpness preserving image enlargement by using self-decomposed codebook and Mahalanobis distance.
Hideaki KawanoNoriaki SuetakeByungki ChaTakashi AsoPublished in: Image Vis. Comput. (2009)
Keyphrases
- image enlargement
- mahalanobis distance
- high frequency components
- covariance matrix
- euclidean distance
- noise model
- high frequency
- metric learning
- distance metric
- projections onto convex sets
- data distribution
- noisy images
- gaussian distribution
- spatial domain
- random noise
- similarity measure
- frequency domain
- pattern recognition