Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!killer!vector!telecom-request From: robert@eva.slu.se (Robert Olsson datoravd, EMC tfn 018-172581) Newsgroups: comp.dcom.telecom Subject: image compressing in facsimile machines - algorithm wanted Message-ID: Date: 26 Aug 88 17:14:21 GMT Sender: chip@vector.UUCP Lines: 9 Approved: telecom-request@vector.uucp (USENET Telecom Moderator) X-TELECOM-Digest: volume 8, issue 134, message 7 X-Submissions-To: telecom@xx.lcs.mit.edu (Mailing List Coordinator) X-Administrivia-To: telecom-request@vector.uucp (USENET Telecom Moderator) Has anybody made an implementation of the codes in the CCITT T.4 telefax recommendation. I think it's called modified Huffman code and is used to compress scanned images in facsimile machines. I've stared at codes for some time now and may be capable of encoding from run lengths to Huffman codes - but decoding Huffman codes into run lengths ? To do that I would definitely need the algorithm. Where can I find it ? Or code? Robert Olsson Swedish university of agricultural sciences