A method for lossless compression of palletized synthetic images is described. The method bases on hierarchical image representation as a set of matrices or hierarchical levels (HL) of a reduced size and on storing only information required to reconstruct a current HL from the calculated values of previous HLs. Different versions of implementing the method are considered. Some of them exploit actively peculiarities of cartographic images. Experimental investigation shows advantages of the method over the well-known lossless compression standards.
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