From: marcoschmidt@users.sourceforge.net (Marco Schmidt)
Date: Wed, 01 Oct 2003 06:08:05 +0200
Subject: [Tiff] Reading thumbnail
In-Reply-To: <20030930145756.46348.qmail@web701.mail.yahoo.co.jp>
References: <20030930145756.46348.qmail@web701.mail.yahoo.co.jp>
Message-ID: <qlkknv4e68u965dacolkbn851ouv26o1fk@4ax.com>

On Tue, 30 Sep 2003 23:57:56 +0900 (JST), you wrote:

>By reading TIFF Specification,
>full-size image is in IFD0 and 
>thumbnail is in IFD1.

No, not really. Sometimes a thumbnail gets stored as a second image in
the TIFF file. Sometimes there is no thumbnail. Sometimes there is a
second image, but it's not a thumbnail version of the first image.

So I'd be careful making assumptions about what you can find in a TIFF
file.

Regards,
Marco



