F. Davoine, G. Robert, J.-M. Chassery. How to improve pixel-based fractal image coding with adaptive partitions. In Fractals in Engineering, J. L. Vehel, E. Lutton, C. Tricot (eds.), Springer-Verlag, London, 1997.
In this paper, we summarize adaptive partitioning methods traditionally used for pixel-based fractal image compression (pixel-based in opposition with hybrid methods). We discuss their properties in terms of flexibility, computing and encoding complexities, and we describe their use in a coding algorithm. In a second part, we propose a new polygonal partition which is fully flexible, and gives a better rate distortion curve, in comparison with results based on adaptive triangulations. We describe a simple approach to compress images, based on unconstrained polygons and contractive affine mappings.
@InCollection{DaRoCh97,
Author = {Davoine, F. and Robert, G. and Chassery, J.-M.},
Title = {How to improve pixel-based fractal image coding with adaptive partitions},
BookTitle = {Fractals in Engineering},
editor = {Vehel, J. L. and Lutton, E. and Tricot, C.},
Publisher = {Springer-Verlag},
Address = {London},
Year = {1997}
}