Keyphrases
- compression algorithm
- quadtree decomposition
- lossless data compression
- wavelet based image
- file size
- image features
- image data
- input image
- data compression
- block coding
- multiscale
- image compression
- cosine transform
- compression ratio
- high resolution
- image retrieval
- test images
- image regions
- wavelet compression
- image segmentation
- image blocks
- embedded image
- bitstream
- gray level images
- jpeg images
- image representation
- similarity measure
- pixel values
- low bit rate