||Hartenstein, H., Ruhl, M., Saupe, D.
||Region-based fractal image compression
||A fractal coder partitions an image into blocks that are coded via
self-references to other parts of the image itself. In this paper we
present a fractal coder that derives highly image-adaptive partitions and
corresponding fractal codes in a time-efficient manner using a
region-merging approach. The proposed merging strategy leads to improved
rate-distortion performance compared to previously reported pure fractal
coders, and it is faster than other state-of-the-art fractal coding methods.