Path: utzoo!attcan!uunet!ncrlnk!ncrwat!images1!paul
From: paul@images1.Waterloo.NCR.COM (Paul J. Latimer)
Newsgroups: comp.graphics
Subject: Re: Anybody heard of CCITT graphics standard?
Summary: CCITT is a FAX standard for image compression, not a file format
Message-ID: <1299@ncrwat.Waterloo.NCR.COM>
Date: 25 Sep 90 12:23:27 GMT
References: <4368@trantor.harris-atd.com>
Sender: news@ncrwat.Waterloo.NCR.COM
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In article <4368@trantor.harris-atd.com>, rbarr@su19o.uucp (Rick Barr) writes:
> A customer has requested that we deliver data in CCITT group 4 graphics
> format.  Anybody know what this is?
> 
CCITT is the governing body for FAX standards.  They developed Group III
compression (both 1- and 2-dimensional) for FAX transmission.  Group IV
is also used, but usually only over an error-free medium (like LAN's,
ISDN, most disk devices, etc. that have error-detecting and correcting
facilities).

The CCITT image compressions formats are public domain and commonly
used for image starage and exchange.  However, it does not define a file
format.  You probably want to find this out from your customer.  I would
suggest TIFF which is very easy to use and is very common.
--
====================================================================
Paul J. Latimer,            Phone: (519)884-1710  FAX: (519)884-0610
Engineering Department,     E-Mail: Paul.J.Latimer@Waterloo.NCR.COM
NCR Canada Ltd., 580 Weber St. N., Waterloo, Ontario, Canada N2J 4G5