Ast Pyramidal Search for Perceptually Based Fract

In this paper , we presenta fast algorithmfor perceptuallybased fractal image compression.The algorithm is based on a refinementof the fractal code from an initial coarselevel of a pyramid.Assumingtheblock matchingerroris modeledasa first orderLaplacianautoregressiveprocess,we derivethe threshold sequencefor the objective function in each pyramidal level… CONTINUE READING