Received: by cthulhu.engr.sgi.com (941129.SGI.8.6.9/911001.SGI)
	for tiff-list id EAA06533; Sat, 24 Dec 1994 04:47:28 -0800
Return-Path: <owner-tiff>
Received: from sgi.sgi.com by cthulhu.engr.sgi.com via ESMTP (941129.SGI.8.6.9/911001.SGI)
	for <tiff-relay@cthulhu.engr.sgi.com> id EAA06528; Sat, 24 Dec 1994 04:47:21 -0800
Received: from sgihub.corp.sgi.com by sgi.sgi.com via ESMTP (941129.SGI.8.6.9/910110.SGI)
	for <tiff@sgi.sgi.com> id EAA20084; Sat, 24 Dec 1994 04:47:20 -0800
Received: from piranha.syracuse.sgi.com by sgihub.corp.sgi.com via SMTP (940519.SGI.8.6.9/911001.SGI)
	for <tiff@sgi.sgi.com> id EAA00750; Sat, 24 Dec 1994 04:47:18 -0800
Received: from bluegill.syracuse.sgi.com by piranha.syracuse.sgi.com via SMTP (931110.SGI/911001.SGI)
	for tiff@sgi.sgi.com id AA16579; Sat, 24 Dec 94 07:46:32 -0500
Received: by bluegill.syracuse.sgi.com (940816.SGI.8.6.9/940406.SGI.AUTO)
	 id HAA11723; Sat, 24 Dec 1994 07:48:17 -0500
Date: Sat, 24 Dec 1994 07:48:17 -0500
From: koz@bluegill.syracuse.sgi.com (Bob Kozdemba)
Message-Id: <199412241248.HAA11723@bluegill.syracuse.sgi.com>
To: ndr@tazboy.JPL.NASA.GOV
Cc: koz@bluegill.syracuse.sgi.com, tiff@sgi.sgi.com
Subject: Re:  retreiving GrayResponseCurve and undefined tag info
In-Reply-To: <9412232202.AA14369@tazboy.JPL.NASA.GOV>
References: <9412232202.AA14369@tazboy.JPL.NASA.GOV>
Sender: owner-tiff@sgi.sgi.com
Precedence: bulk

Bob Kozdemba writes,

>>  I also need to retreive 32 bytes of info at TAG 65535, which is undefined. I
>>  noticed that 'tiffdump' works, but it looks like 'tiffdump' does not use
>>  TIFFGetField().
>
>Is the use of tag 65535 already in somebody's code? If not, it might
>be wise to reserve a private tag ID from Aldus, which avoids the danger
>of encountering images with incompatible tags of the same ID (65535 is
>a likely candidate for this hazard). Aldus allocates them in blocks of
>5, and it only takes a day or two to get them.
>
>I'm not sure who handles the TIFF tag registry now (it used to be Andy
>Commons) but you might try Steve.Carlsen@aldus.com for starters.
>
>  --Niles.

Thanks Niles, The TAG 65535 is used by Kodak. This image I am trying to read
is from a DCS420 digital camera.

Happy Holidays,
Bob


