This article contain detailed description of used compression method.
Download an article about compression in postscriptThese implementations are free for non comertional purposes eg educational. It produces image format FTG which store data in the new method of compression.
1st is written in programming language C++ and is now tested with compilers GCC (tested both Linux and DJGPP platforms), Borland C++, Watcom C++ (normal and 386 mode). There may be some problems i you want to compile for Motorola family.
Implementation is written as part of the pictures library.
Download test C++ and PAS code for DOS, DOS (DPMI 16) and Windows