PROCESS OF PICTURE REPRESENTATION BY DATA COMPRESSION

摘要

Process of picture representation by data compression comprising the steps of: 1 - subdividing the picture into regions; 2 - registering the values of a brightness function (or "grey levels") preferably at each pixel of the picture; 3 - fixing for each region a characteristic scale (L) preferably defined in terms of a number of pixels; 4 - dividing each region into cells, each comprising a number of points (pixels) defined by two variables (coordinates), said cells having linear dimension in the order of L, and preferably equal approximately to L; 5 - identifying in each cell the "basic elements" or "structures"; 6 - in each cell, representing the basic elements by models (or submodels); and 7 - storing and/or transmitting, for each cell the data defining each model, said data together representing the "primary compression" of the picture. - Optionally, said data may be further compressed by any suitable methods, or otherwise processed. o