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From: Frank Warmerdam <warmerdam@pobox.com>
To: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
Cc: TIFF <tiff@lists.maptools.org>
Subject: Re: [Tiff] Custom and EXIF directory read/write
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On Wed, Jun 6, 2012 at 6:42 AM, Bob Friesenhahn
<bfriesen@simple.dallas.tx.us> wrote:
> A common expectation/requirement is to be able to take an EXIF chunk from
> JPEG and put it in TIFF, or vice-versa. =A0The method you describe seems =
to
> require that the application/user add tags one by one so it is necessary =
to
> parse the EXIF blob fully in order to transfer it into TIFF. =A0Is there a
> possibility of extracting an EXIF "blob" from TIFF or inserting an EXIF
> "blob" into TIFF? =A0This would require fixup of the IFD offsets since the
> offsets are treated differently in JPEG and TIFF.

Bob,

This seems plausible, but well beyond what I'm interested
in attacking.  I was really just trying to get the custom
directory handling working more smoothly.

I'll leave what you suggest as an area open for contribution. :-)

Best regards,
-- =

---------------------------------------+-----------------------------------=
---
I set the clouds in motion - turn up=A0=A0 | Frank Warmerdam, warmerdam@pob=
ox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush=A0 =A0 | Geospatial Software Developer
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