http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=TG4_%28Image_Machines%29 2026-04-24T03:51:59Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=TG4_(Image_Machines)&diff=39418&oldid=prev 2021-02-21T14:14:57Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|tg4}} }} :&#039;&#039;See <a href="/wiki/TG4" title="TG4">TG4</a> for other formats with that name.&#039;&#039; &#039;&#039;&#039;TG4&#039;&#039;&#039; is a bi-level raster image format...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Graphics<br /> |extensions={{ext|tg4}}<br /> }}<br /> :''See [[TG4]] for other formats with that name.''<br /> <br /> '''TG4''' is a bi-level raster image format associated with Image Machines Corporation of Herndon, VA. It is used by their ''IMageCenter'' (often written with a capital ''M'') product, and maybe other products. It uses [[CCITT Group 4]] compression. TG4 stands for &quot;Tiled CCITT Group 4&quot;.<br /> <br /> It is similar, but generally not identical, to [[JEDMICS C4]] format, which was also designed by Image Machines.<br /> <br /> == Identification ==<br /> More research needed. Some files begin with (hex) {{magic|80 00 00 00}}, like [[JEDMICS C4]], but others do not.<br /> <br /> == Specifications ==<br /> * [https://hwiegman.home.xs4all.nl/fileformats/tg4/tg4.doc TG4 File Format] - Apparently an excerpt from IMageCenter User's Guide (MS Word format)</div>

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