Keyphrases
- block truncation coding
- compression scheme
- image compression
- input image
- image blocks
- pixel values
- gray value
- image quality
- compression ratio
- data compression
- multiscale
- feature vectors
- entropy coding
- index table
- data hiding
- compression algorithm
- image regions
- test images
- high compression ratio
- feature space
- reconstructed image
- image data
- high resolution
- spatial domain
- error correction
- transform domain
- blocking artifacts
- feature selection