Message-ID: 383E9A7B.65B2@srz-berlin.de
To: Martin Bailey <martinb@harlequin.co.uk>
Subject: Re: CCITT compressed TIFF files.
From: Helge Blischke <H.Blischke@srz-berlin.de>
Date: Fri, 26 Nov 1999 15:34:35 +0100
CC: tiff@olympiakos.com
Organization: SRZ BERLIN
References: <3.0.5.32.19991126131623.00cbedb0@mailhost.cam.harlequin.co.uk>
Sender: owner-tiff@olympiakos.com


Martin Bailey wrote:
> 
> I'm hoping that somebody will be able to help me with this one while I
> still have some hair.
> 
> I've been trying to work out whether some sample TIFF files that I have are
> correct or not. They are CCITT compressed (G3, but I'm interested in
> checking the others as well), and a mixture of WhiteIsZero and BlackIsZero.
> I need to know whether the image data is correctly set or whether I have it
> negated.
> 
> So far I've been using PaintShopPro and PhotoShop to view these images, but
> the two disagree on whether the images are negated or not, and making
> changes to the tags appears to lead to unexpected results.
> 
> Is there an application available that's guaranteed to show me the image
> data in CCITT compressed TIFF files correctly?
> 
> Martin Bailey
My PostScrip procset for handling TIFF images (needs Ghostscript or
another PS interpreter
havein access to the host's file system).
For simplicity, send me the TIFF file; I'll check it for compliance to
the spec.

Helge
-- 
H.Blischke@srz-berlin.de
H.Blischke@srz-berlin.com
H.Blischke@acm.org

