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From: Andrey Kiselev <dron@ak4719.spb.edu>
To: tiff@remotesensing.org
Subject: Re: [Tiff] large TIFF - two alternatives
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Date: Thu, 27 May 2004 16:49:56 +0400
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On Thu, May 27, 2004 at 11:43:49AM +0100, John Aldridge wrote:
> This is a serious question, and not intended as a flame:  if I need to
> support a new file format to get >2/4GB support, why wouldn't I just
> use PNG?

TIFF is much more powerful and flexible file format. You can store
almost any C data type (signed/unsigned 32 bit integer, floating point,
complex values). That is widely used in the area where I'm working
(geospatial and remote sensing applications, scientific data
processing). Also we have widely approved and working GeoTIFF
extension. Nothing similar for PNG. For me TIFF is most comfortable
image file format, the only limitation is 4GB barrier.

PNG has its own advantages, namely it is fully streamable. These are
different formats designed with different goals in mind.

						Andrey


-- 
Andrey V. Kiselev
Home phone:  +7 812 5274898  ICQ# 26871517
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