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From: jtc@van-bc.wimsey.bc.ca (J.T. Conklin)
Newsgroups: comp.graphics
Subject: Re: Anybody heard of CCITT graphics standard?
Summary: CCITT T.6 encoding
Keywords: fax CCITT TIFF
Message-ID: <2157@van-bc.wimsey.bc.ca>
Date: 27 Sep 90 15:46:30 GMT
References: <4368@trantor.harris-atd.com>
Distribution: na
Organization: UniFax Communications Inc., Vancouver, B.C., Canada
Lines: 21

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?

They are probably requesting raw CCITT T.6 encoded data, as is
transmitted between two Group 4 facsimile machines.  The T.6
specification only specifies transmitted data; it doesn't dictate how
this should be represented in a file, as image storage is outside its
domain.

When dealing with images of this nature, I prefer to encapsulate them
in TIFF files, which have the necessary tags to specify image size,
image resolution, bit order, photometric interpretation, etc...

	---jtc



-- 
J.T. Conklin	UniFax Communications Inc.
		...!{uunet,ubc-cs}!van-bc!jtc, jtc@wimsey.bc.ca