Return-Path: <awaresystems.be+caf_=filtered=awaresystems.be@gmail.com>
Delivered-To: filtered@awaresystems.be
Received: from mx2.pub.mailpod2-cph3.one.com ([10.27.25.12])
	by mailstorage18.cst.mailpod2-cph3.one.com (Dovecot) with LMTP id xaXIDp2YvVnYaQEAQS8vrQ
	for <filtered@awaresystems.be>; Sat, 16 Sep 2017 21:33:25 +0000
X-HalOne-ID: aaa5d53b-9b26-11e7-aafe-e0d84895704e
Received: from mail-oi0-f44.google.com (unknown [209.85.218.44])
	by mx2.pub.mailpod2-cph3.one.com (Halon) with ESMTPS
	id aaa5d53b-9b26-11e7-aafe-e0d84895704e;
	Sat, 16 Sep 2017 21:33:24 +0000 (UTC)
Received: by mail-oi0-f44.google.com with SMTP id v66so2383694oig.5
        for <filtered@awaresystems.be>; Sat, 16 Sep 2017 14:33:24 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-original-authentication-results:x-gm-message-state:delivered-to
         :user-agent:date:from:to:message-id:thread-topic:references
         :in-reply-to:mime-version:subject:precedence:list-id
         :list-unsubscribe:list-archive:list-post:list-help:list-subscribe
         :content-transfer-encoding:sender:errors-to;
        bh=Zm6knAK8NVTRZQluttnJy2BcmtcB7QVWEVgQKY7okZA=;
        b=ZQEUPmiRBW0QBXBz0VUfyPvnOfmQEQQahsw6ah2HNmclvBhwUv/l17zVV090dBYK9F
         jJZkXlS4O41rW9vUMiBnETkKL/6C/3uDvocUPqjs5BnLTWuM94ra4fwU0Rjuk2rtcW2C
         j9s9IPR37soWa1Y1/skGwG0WO9jnbEgCKUUEMO/PaTPDGIFLN/2WYDi80J/lm9e2cpm7
         lgY/QjStsCNw2HGSOOvtEsW71Q5S8NNcOVZvZqt79Jm0j0mRDkznSBy9ak1PxLDK/GVa
         Tv/dq7/eMq+Sy6BppCtvW7sPUCCCZwHtMw++amuo3IWoBfXDZTpuXeX0gaXSS0LNBgSP
         Ox2A==
X-Original-Authentication-Results: mx.google.com;       spf=neutral (google.com: 94.23.4.142 is neither permitted nor denied by best guess record for domain of tiff-bounces@lists.maptools.org) smtp.mailfrom=tiff-bounces@lists.maptools.org
X-Gm-Message-State: AHPjjUg72DmzozjN/iaxJNWyaVOVPx2NhdJzpD/SrofvKzyZLikn7xRb
	K8IOA4hSBpAsh5ft4lxz4G2pQ+jYbaTBPVaazbTTxQ==
X-Received: by 10.202.73.65 with SMTP id w62mr31258778oia.159.1505597602742;
        Sat, 16 Sep 2017 14:33:22 -0700 (PDT)
X-Forwarded-To: filtered@awaresystems.be
X-Forwarded-For: awaresystems.be@gmail.com filtered@awaresystems.be
Delivered-To: awaresystems.be@gmail.com
Received: by 10.74.122.195 with SMTP id a186csp2401898ooc;
        Sat, 16 Sep 2017 14:33:21 -0700 (PDT)
X-Received: by 10.223.196.238 with SMTP id o43mr26757260wrf.276.1505597601583;
        Sat, 16 Sep 2017 14:33:21 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1505597601; cv=none;
        d=google.com; s=arc-20160816;
        b=032SZrVaOQWlGCzeYPDkJKsIhDUmBOP4yeKNXJQ5TErvvG3Qr2OIgj2jsDiPaJnc0I
         otbpBoB8LwKXDzphipDI7UJ/5N+BDyooC4OPjh/hhsZ4+qC56MNeVkojnICkvnhYmcpi
         XW1goKAGcOFf1u/DbbPqGkB8zm/9f6MgqH97qGUrO/Cs44Ugl9Z/Lma+v3z8MU7lJmjZ
         mzg0Vz2uXS1azSG7MzwsTI32QMByQo0w+Ke9H+gBsJyo29Iu12vQ8fLkx4Sv1YVUtFey
         VXuP4JjQ3GOt69wmIG4R5EtZxA9cISGBe9IFeIyLxWBj2tSIoaTtCSNDSVOlcS9/PqhB
         w+iw==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=errors-to:sender:content-transfer-encoding:list-subscribe:list-help
         :list-post:list-archive:list-unsubscribe:list-id:precedence:subject
         :mime-version:in-reply-to:references:thread-topic:message-id:to:from
         :date:user-agent:arc-authentication-results;
        bh=Zm6knAK8NVTRZQluttnJy2BcmtcB7QVWEVgQKY7okZA=;
        b=yJ8mxwkk41ez1tv3TjrN/ySpDnLbVlV0NK38UT1BXCkdQ1l7t80O6KoZgCyE0sHt+F
         1qNnPzVMnOJ/cASXU173WffRdv1n4vtLIIeYXRKAka08NJBm7jJl+8x+1L5RVHK0+yRL
         bWyUjU7BiQappmZaZdDvoO/T9Cn9jWORr5w+o1Ro7DM4fPsLU6rYCjoBEMOHqa7S5+SC
         cmExHQs9c1MkWp+292+TyXkS+hY+NAUZFoUdsceR5B0cxgiMfJQPnD0W0vHTyLmO1EnD
         MaMmMozhqcE2WaRkdlnjqZwkJGelYsmFp4VWUYW5vZa9JGGRyFo0U6xoxjwVEiY0YAF6
         H93g==
ARC-Authentication-Results: i=1; mx.google.com;
       spf=neutral (google.com: 94.23.4.142 is neither permitted nor denied by best guess record for domain of tiff-bounces@lists.maptools.org) smtp.mailfrom=tiff-bounces@lists.maptools.org
Return-Path: <tiff-bounces@lists.maptools.org>
Received: from lists.maptools.org (ks365428.kimsufi.com. [94.23.4.142])
        by mx.google.com with ESMTP id e191si3256184wmg.41.2017.09.16.14.33.15;
        Sat, 16 Sep 2017 14:33:21 -0700 (PDT)
Received-SPF: neutral (google.com: 94.23.4.142 is neither permitted nor denied by best guess record for domain of tiff-bounces@lists.maptools.org) client-ip=94.23.4.142;
Authentication-Results: mx.google.com;
       spf=neutral (google.com: 94.23.4.142 is neither permitted nor denied by best guess record for domain of tiff-bounces@lists.maptools.org) smtp.mailfrom=tiff-bounces@lists.maptools.org
Received: from [10.1.0.241] (localhost.localdomain [127.0.0.1])
	by lists.maptools.org (Postfix) with ESMTP id 87DAC35C042;
	Sat, 16 Sep 2017 16:32:18 -0500 (EST)
Received: from mail-io0-f176.google.com (mail-io0-f176.google.com
	[209.85.223.176])
	by lists.maptools.org (Postfix) with ESMTPS id 3D69E35C03E
	for <tiff@lists.maptools.org>; Sat, 16 Sep 2017 16:32:08 -0500 (EST)
Received: by mail-io0-f176.google.com with SMTP id g32so12966598ioj.2
	for <tiff@lists.maptools.org>; Sat, 16 Sep 2017 14:32:08 -0700 (PDT)
X-Google-Smtp-Source: AOwi7QBgKQQFVDAbeFLTLfaFfzvjTxRwo2nxSkBDe/HPBafocj46L6NWaoBio1QFxPHOVFqm3Qchqg==
X-Received: by 10.107.20.215 with SMTP id 206mr13474492iou.116.1505597527050; 
	Sat, 16 Sep 2017 14:32:07 -0700 (PDT)
Received: from [192.168.254.79] (dyn-177.cmts01.cable.TORON17.iasl.com.
	[206.210.119.177])
	by smtp.gmail.com with ESMTPSA id i63sm1165696ith.5.2017.09.16.14.32.02
	(version=TLS1 cipher=AES128-SHA bits=128/128);
	Sat, 16 Sep 2017 14:32:06 -0700 (PDT)
User-Agent: Microsoft-MacOutlook/14.7.7.170905
Date: Sat, 16 Sep 2017 17:31:53 -0400
From: Kemp Watson <kemp@objectivepathology.com>
To: Tiff List <tiff@lists.maptools.org>
Message-ID: <D5E30F07.4E8B3%kemp@objectivepathology.com>
Thread-Topic: [Tiff] TIFF tile size limit
References: <alpine.GSO.2.20.1709161446510.16875@freddy.simplesystems.org>
In-Reply-To: <alpine.GSO.2.20.1709161446510.16875@freddy.simplesystems.org>
Mime-version: 1.0
Subject: Re: [Tiff] TIFF tile size limit
X-BeenThere: tiff@lists.maptools.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: TIFF and libtiff discussion <tiff.lists.maptools.org>
List-Unsubscribe: <http://lists.maptools.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@lists.maptools.org?subject=unsubscribe>
List-Archive: <http://lists.maptools.org/mailman/private/tiff>
List-Post: <mailto:tiff@lists.maptools.org>
List-Help: <mailto:tiff-request@lists.maptools.org?subject=help>
List-Subscribe: <http://lists.maptools.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@lists.maptools.org?subject=subscribe>
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Sender: tiff-bounces@lists.maptools.org
Errors-To: tiff-bounces@lists.maptools.org

What=B9s a =B3practical=B2 TIFF? 65,536 pixels on a side and 2 GB/4 GB was =
the
absolute largest anyone could conceive of an image being, just a few years
ago=8A we=B9re already a thousand times beyond that, with practical images.
I=B9d say the same size as the maximum size of the image.. i.e. any
arbitrary subregion of the image.

With HEIF on the horizon, TIFF will need to be VERY flexible.

W. Kemp Watson

kemp@objectivepathology.com


Objective Pathology Services Limited

8250 Lawson Road
Milton, Ontario
Canada  L9T 5C6

www.objectivepathology.com
tel. +1 (416) 970-7284





On 2017-09-16, 3:50 PM, "Bob Friesenhahn" <tiff-bounces@lists.maptools.org
on behalf of bfriesen@simple.dallas.tx.us> wrote:

>Does anyone have an opinion on the maximum tile size which should be
>allowed by a general purpose TIFF reader?
>
>For example is 4096x4096 large enough to handle any practical TIFFs?
>
>Bob
>-- =

>Bob Friesenhahn
>bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
>GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
>_______________________________________________
>Tiff mailing list: Tiff@lists.maptools.org
>http://lists.maptools.org/mailman/listinfo/tiff
>http://www.remotesensing.org/libtiff/


_______________________________________________
Tiff mailing list: Tiff@lists.maptools.org
http://lists.maptools.org/mailman/listinfo/tiff
http://www.remotesensing.org/libtiff/
