Fractal coding of data in the DCT domain

摘要

A method of calculating the discrete cosine transform (DCT) of blocks of pixels of a picture includes the steps of defining first subdivision blocks called range blocks, having a fractional and scaleable size N/2*N/2, where i is an integer number, in respect to a maximum pre-defined size of N*N pixels of blocks of division of said picture, referred to as domain blocks, shiftable by intervals of N/2 pixels, and of calculating the DCT on 2 range blocks of subdivision of a domain block of N*N pixels of said picture, in parallel.