Re: [PLUG] jpeg maybe rotating

[Jeff Abrahamson <jeff@purple.com>]

On Mon, May 09, 2005 at 10:17:25AM -0400, Paul L. Snyder wrote:
>   [19 lines, 90 words, 757 characters]  Top characters: _toensla
> 
> Quoting Jeff Abrahamson <jeff@purple.com>:
> 
> > Yeah, I was thinking I might end up doing it that way.  It's also the
> > unix way, though, to discover that some tool already exists for what
> > you want. ;-)
> 
> Try checking out jhead, which should parse the EXIF info to text for
> you, so you can grep it, etc.
> 
>   http://www.sentex.net/~mwandel/jhead/

That's excellent, thanks.  It only emits an Orientation line if it
needs rotating, apparently.  It's got several other features I like,
excellent!  Thanks.


> I'd question why exiftran is recoding the JPEG...isn't it supposed to
> be able to do lossless rotation?

It supposedly does, I suspect it is making a note in the EXIF header.
I just know it's not bit for bit the original.  And I'm a very
suspicious sort.

-- 
 Jeff

 Jeff Abrahamson  <http://www.purple.com/jeff/>    +1 215/837-2287
 GPG fingerprint: 1A1A BA95 D082 A558 A276  63C6 16BF 8C4C 0D1D AE4B

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