| lossy algorithm |
| patented technology by Barnsley ("Fractals Everywhere", 1988) |
| in the forward direction fractal mathematics is good for generating natural looking images (trees, clouds, mountains) |
| in reverse direction can be used to compress images |
| compression extremely slow (many hours) |
| decompression fast |
| theoretically very high ratio - 1000:1 |
| based on Iterated Function Theory (J.Hutchinson, 1981) and Partitioned Iterated Function Theory |
| for compression ratio up to 40:1 JPEG is better; quality worse than wavelets or JPEG |
| details are generated when zooming in the advanced form of interpolation |