Return-Path: <awaresystems.be+caf_=filtered=awaresystems.be@gmail.com>
X-Original-To: filtered@awaresystems.be
Delivered-To: filtered@awaresystems.be
Received: from mx-r.b-one.net (mx-r.one.com [91.198.169.249])
	by mail9.b-one.net (Postfix) with ESMTP id 68233400160
	for <filtered@awaresystems.be>; Fri, 12 Aug 2011 16:24:35 +0200 (CEST)
Received: by mx-r.b-one.net (Postfix, from userid 106)
	id 5E48FF5EB5E; Fri, 12 Aug 2011 16:24:20 +0200 (CEST)
X-Virus-Scanned: by one.com
Received-SPF: pass (mx-r: domain of
 awaresystems.be+caf_=filtered=awaresystems.be@gmail.com designates
 74.125.82.176 as permitted sender)
X-Greylist: domain auto-whitelisted by SQLgrey-1.7.4
Received: from mail-wy0-f176.google.com (mail-wy0-f176.google.com
 [74.125.82.176]) by mx-r.b-one.net (Postfix) with ESMTP id 8DF0CF5EB60 for
 <filtered@awaresystems.be>; Fri, 12 Aug 2011 16:24:19 +0200 (CEST)
Received: by wyg30 with SMTP id 30so3222151wyg.21 for
 <filtered@awaresystems.be>; Fri, 12 Aug 2011 07:24:19 -0700 (PDT)
Received: by 10.216.145.1 with SMTP id o1mr832061wej.68.1313159059133; Fri,
 12 Aug 2011 07:24:19 -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 10.216.166.10 with SMTP id f10cs199827wel; Fri, 12 Aug 2011
 07:24:18 -0700 (PDT)
Received: from mr.google.com ([10.14.124.76]) by 10.14.124.76 with SMTP id
 w52mr253574eeh.189.1313159058583 (num_hops = 1); Fri, 12 Aug 2011 07:24:18
 -0700 (PDT)
Received: by 10.14.124.76 with SMTP id w52mr192433eeh.189.1313159056596; Fri,
 12 Aug 2011 07:24:16 -0700 (PDT)
Received-SPF: softfail (google.com: best guess record for domain of
 transitioning tiff-bounces@lists.maptools.org does not designate
 91.198.169.58 as permitted sender) client-ip=91.198.169.58;
Received: by 10.241.103.26 with POP3 id 26mf507621ewy.65; Fri, 12 Aug 2011
 07:24:16 -0700 (PDT)
X-Gmail-Fetch-Info: info@awaresystems.be 1 pop.awaresystems.be 110
 info@awaresystems.be
X-Original-To: info@awaresystems.be
Delivered-To: info@awaresystems.be
Received: from mx-k.b-one.net (mx-k.one.com [91.198.169.58]) by
 mail9.b-one.net (Postfix) with ESMTP id A7523400160 for
 <info@awaresystems.be>; Fri, 12 Aug 2011 16:20:50 +0200 (CEST)
Received: by mx-k.b-one.net (Postfix, from userid 106) id 9A3DB7C9E55; Fri,
 12 Aug 2011 16:20:37 +0200 (CEST)
X-Greylist: domain auto-whitelisted by SQLgrey-1.7.4
Received: from lists.maptools.org (lists.maptools.org [65.39.174.144]) by
 mx-k.b-one.net (Postfix) with ESMTP id 0CB007C9E42 for
 <info@awaresystems.be>; Fri, 12 Aug 2011 16:20:36 +0200 (CEST)
Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by
 lists.maptools.org (Postfix) with ESMTP id D1713871B9; Fri, 12 Aug 2011
 09:18:22 -0500 (EST)
Received: from blade.simplesystems.org (blade.simplesystems.org
 [65.66.246.74]) by lists.maptools.org (Postfix) with ESMTPS id A0E1586EBB for
 <tiff@lists.maptools.org>; Fri, 12 Aug 2011 08:59:05 -0500 (EST)
Received: from freddy.simplesystems.org (freddy.simplesystems.org
 [65.66.246.65]) by blade.simplesystems.org (8.14.4+Sun/8.14.4) with ESMTP id
 p7CDx3pI016564; Fri, 12 Aug 2011 08:59:03 -0500 (CDT)
Date: Fri, 12 Aug 2011 08:59:03 -0500 (CDT)
From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
X-X-Sender: bfriesen@freddy.simplesystems.org
To: Weichao Wang <weichao_wang@hotmail.com>
In-Reply-To: <BAY161-W456E06433148BA2A8F082DF1250@phx.gbl>
Message-ID: <alpine.GSO.2.01.1108120855460.13342@freddy.simplesystems.org>
References: <BAY161-W456E06433148BA2A8F082DF1250@phx.gbl>
User-Agent: Alpine 2.01 (GSO 1266 2009-07-14)
MIME-Version: 1.0
Content-Type: MULTIPART/MIXED; BOUNDARY="-559023410-611814452-1313157543=:13342"
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2
 (blade.simplesystems.org [65.66.246.90]); Fri, 12 Aug 2011 08:59:03 -0500
 (CDT)
Cc: tiff@lists.maptools.org
Subject: Re: [Tiff] libtiff still under development?
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>
Sender: tiff-bounces@lists.maptools.org
Errors-To: tiff-bounces@lists.maptools.org

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

---559023410-611814452-1313157543=:13342
Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed
Content-Transfer-Encoding: 8BIT

On Fri, 12 Aug 2011, Weichao Wang wrote:

> Hi all,
>  
> Is libtiff still under development? I'm wondering if following functions could be added to the library:

Libtiff is alive and well.  It progresses slowly due to part-time 
volunteers.

> TIFFReadBilevelImageDate()
> TIFFReadGrayImageDate()
> TIFFReadRgbImageDate()
> TIFFReadCmykImageDate()
> They should all read out uncompressed image data of the whole image. For colour image the data should be aligned in planar format, so
> that a user can easily get a certain colour component.
> This way a libtiff user needn't to bother with questions as:
> Is the image stripped or tiled?
> Is the colour image data in chunky or planar format?
> I hope you won't say that I'm too lazy or too greedy......

Probably the best approach is for you to develop these API additions 
and validate them with many types of TIFF images, including very large 
ones.  Then submit a source patch to add the new APIs to libtiff 
Bugzilla.  Make sure that you develop your patches based on CVS HEAD 
since that is where new features are added.

Bob
-- 
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
---559023410-611814452-1313157543=:13342
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Tiff mailing list: Tiff@lists.maptools.org
http://lists.maptools.org/mailman/listinfo/tiff
http://www.remotesensing.org/libtiff/
---559023410-611814452-1313157543=:13342--
