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Date: Fri, 21 Jan 2005 15:02:35 -0500
From: Frank Warmerdam <fwarmerdam@gmail.com>
To: Antoine <melser.anton@gmail.com>
Subject: Re: [Tiff] deleting tags!
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On Fri, 21 Jan 2005 19:29:08 +0100, Antoine <melser.anton@gmail.com> wrote:
> ps. what exactly do we lose with tiffcp? I found one way of "deleting" a
> tag - tiffcp will fail to copy a tag if it has an illegal value for its
> value (or values, I think it was the number of values that it takes, or
> size of the value, I forget, anyway we had dateTimes that had 25
> whatevers and should only have 20, the tag was present before setting
> another tag, and absent after...)

Antoine, 

As to what we lose with tiffcp, I can't give a precise answer.  But
there are esoteric tags not addressed in the list processed by
tiffcp.  Also, tiffcp unpacks and repacks the imagery and as far as 
I know this could lose (or correct) some quirks of the original image.

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent
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