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Date: Wed, 8 Feb 2006 10:01:06 -0600 (CST)
From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
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To: arlon <byagc@hotmail.com>
Subject: Re: [Tiff] Are Compression CCITTFAX4 inverted?
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Status:   

On Wed, 8 Feb 2006, arlon wrote:

> Hi friends
>
>   My Tiff have two bugs,
> When compression is CCITTFAX4 in Windows Fax Viewer it appear inverted.
> Appear as has just one page.
>
> Who can help me?

The only workable solution is to use a photometric of 
PHOTOMETRIC_MINISWHITE and invert the bits yourself before saving 
them.  Most FAX viewers assume that the default background is white 
like a printed page and will ignore the photometric.

Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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