Return-Path: <tiff-admin@remotesensing.org>
Received: from inmx012.isp.belgacom.be (inmx012.isp.belgacom.be [195.238.3.90])
        by mailst006.isp.belgacom.be (8.12.9/8.12.9/Skynet-MAILSTORE-2.14) with ESMTP id i52HIe1A024998
        for <joris.at.lebbeke@skynet.be>; Wed, 2 Jun 2004 19:18:40 +0200
        (envelope-from <tiff-admin@remotesensing.org>)
Received: from yoda.imagelinks.com ([208.24.120.44])
        by inmx012.isp.belgacom.be (8.12.11/8.12.11/Skynet-IN-2.32) with ESMTP id i52HIUDp016043
        for <joris.at.lebbeke@skynet.be>; Wed, 2 Jun 2004 19:18:30 +0200
        (envelope-from <tiff-admin@remotesensing.org>)
Received: from yoda.imagelinks.com (localhost.localdomain [127.0.0.1])
	by yoda.imagelinks.com (8.11.6/8.11.6) with ESMTP id i52HEKt04974;
	Wed, 2 Jun 2004 13:14:20 -0400
Received: from smtp-relay-7.sea.adobe.com (smtp-relay-7.adobe.com [192.150.22.7])
	by yoda.imagelinks.com (8.11.6/8.11.6) with ESMTP id i52HDjt04904
	for <tiff@remotesensing.org>; Wed, 2 Jun 2004 13:13:45 -0400
Received: from inner-relay-1.corp.adobe.com (inner-relay-1 [153.32.1.51])
	by smtp-relay-7.sea.adobe.com (8.12.10/8.12.10) with ESMTP id i52EKxSP012119;
	Wed, 2 Jun 2004 07:21:00 -0700 (PDT)
Received: from seaclus2 (seaclus2.sea.adobe.com [153.32.250.104])
	by inner-relay-1.corp.adobe.com (8.12.9/8.12.9) with ESMTP id i52EKx3k003732;
	Wed, 2 Jun 2004 07:20:59 -0700 (PDT)
Received: from [153.32.220.138] (foobird.sea.adobe.com [153.32.220.138])
 by mailsea.sea.adobe.com
 (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003))
 with ESMTP id <0HYO0015HQISXC@mailsea.sea.adobe.com>; Wed,
 02 Jun 2004 07:20:52 -0700 (PDT)
From: Steve Carlsen <scarlsen@adobe.com>
Subject: RE: [Tiff] large TIFF - two alternatives
In-reply-to: <3206D8FDDF2F2541A7715A82522893770BC0C59E@hq2.pcmail.ingr.com>
X-Sender: scarlsen@mailsea.sea.adobe.com
To: "Grissom, Ed" <ed.grissom@intergraph.com>, tiff@remotesensing.org
Message-id: <a06020402bce391089a8f@[153.32.220.138]>
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii
Content-transfer-encoding: 7BIT
References: <3206D8FDDF2F2541A7715A82522893770BC0C59E@hq2.pcmail.ingr.com>
Sender: tiff-admin@remotesensing.org
Errors-To: tiff-admin@remotesensing.org
X-BeenThere: tiff@remotesensing.org
X-Mailman-Version: 2.0.13
Precedence: bulk
List-Help: <mailto:tiff-request@remotesensing.org?subject=help>
List-Post: <mailto:tiff@remotesensing.org>
List-Subscribe: <http://remotesensing.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@remotesensing.org?subject=subscribe>
List-Id: TIFF and libtiff discussion <tiff.remotesensing.org>
List-Unsubscribe: <http://remotesensing.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@remotesensing.org?subject=unsubscribe>
List-Archive: <http://remotesensing.org/pipermail/tiff/>
Date: Wed, 02 Jun 2004 07:20:35 -0700
X-UIDL: abfa18e8610ca0d05fb56ca788eef235

At 11:27 -0500 6/1/04, Grissom, Ed wrote:
>As far as Endian issues, lets share the pain, and don't put it all on one
>platform to have to swap.  As the number of multibyte sensors grows, I can
>see that all of my work in a few years will be 16bit/band image or greater.
>This will require swapping every pixel value all the time on read and write.
>Let me write what is convenient for my platform and read whatever is thrown
>at me.

There may be a compromise position here: let the directory/dictionary structure be always big-endian, but allow pixel data to be either (and flagged as such). This may simplify "New TIFF" readers a bit (?), and yet gives the desired performance.

I think you're the first "vote" for a more general make-over of TIFF. I'm happy that there's at least one. :-)

SteveC
_______________________________________________
Tiff mailing list
Tiff@remotesensing.org
http://remotesensing.org/mailman/listinfo/tiff
