An Evaluation of Fractal Transforms for Image Approximation

After a controversial start, the use of fractal approximations to achieve image compression has begun to attract serious attention as a technology for picture archiving and transmission. Fractal transforms are competitive in a number of ways with other compression techniques. This paper describes the trade-offs available between complexity (cost) of fractal transforms and their fidelity. Some comparisons with JPEG compressed images will be given and the question of achievable compression ratios will be discussed.