Message-ID: 383BE5CB.55205785@ina.de
To: TIFF Mailing List <tiff@olympiakos.com>
Subject: Re: tiles or stripes ?
From: Klaus Bartz <bartzkau@ina.de>
Date: Wed, 24 Nov 1999 14:19:07 +0100
References: <383BBE55.382F8B81@wenninger.de>
Sender: owner-tiff@olympiakos.com


Hi Peter,
I think, you mean section 3 of the spec. That's baseline TIFF.
The "data coherence format" tiled is not baseline ( most common
reader do not support it). See section 15: Tiled Images

StripOffsets + RowsPerStrip + StripByteCounts

for "untiled"/striped,

TileWidth + TileLength + TileOffsets + TileByteCounts

for tiled; NEVER both.

Look into tiffcp.c from Sam Leffler's libtiff, then you see what
to do.

Klaus


Peter Zitzelsperger wrote:
> 
> Hi all!
> 
> Still having problems in writing TIFF images, I wonder about the TIFF
> spec. (version 6.0):
> Required fields for bilevel images are
> 
> StripOffsets
> RowsPerStrip
> StripByteCounts
> 
> But who will keep me from saving bilevelor grayscale  images in tiles?
> Are the tags mentioned abouve still necessary with tiled images ?
> (RowsPerStrip should have the same value than TileLength then, but is
> that not strange?)
> 
> Thank you for your comments.
> 
> With regards, Peter.

-- 
-------------------------------------------------------------------
Dr. Klaus Bartz                                     bartzkau@ina.de
COI GmbH / Abt. KOS3    Industriestr. 1-3    D-91072 Herzogenaurach
Tel: +49 (9132) 82-3433                        Fax: +49-9132-824959

