Re: [Gqview-users] Offline rotation

[Anthony T. <A.T...@gr...>]

On Sat, 05 Sep 2009 21:04:45 +0100
Florian Hollerweger <fho...@qu...> wrote:

| Hi list,
| 
| One feature which I really like about the 'pho' image viewer 
| (http://www.shallowsky.com/software/pho/) is that whenever one quits it, 
| it outputs a list of all rotations one has applied to the images viewed. 
| I then use this information to let 'jpegtran' rotate my images accordingly.
| 
| I was wondering whether there is any comparable way to access the 
| information that GQview keeps on which images have been rotated (for 
| display purposes only) using the "[" and "]" keys.
| 
| First I thought I'll use the external jpegtran commands which come on 
| Ctrl+1 and Ctrl+2 with the standard Debian install of GQview, but I find 
| the response of those a bit too slow, so I'd prefer to use the quicker 
| "[" "]" rotations and then do the transformations on the actual files 
| offline in one go.
| 
Why bother with a list?

Just use   jhead -autorot  on all the images.  If the orientation flag
identifies the image needs rotation it will be rotated loss-lessly,
thumbnail included.

Of course that does not help for images that are badly rotated without
a valid EXIF orientation flag.


  Anthony Thyssen ( System Programmer )    <A.T...@gr...>
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/