[Pkg-kde-extras] Bug#579252: geeqie: Extracted thumbs from Olympus E-500 raw files are so small

[Celso González]

On Thu, May 06, 2010 at 09:22:11AM +0200, Michal Čihař wrote:
> Dne Mon, 26 Apr 2010 15:41:43 +0200
> Celso González <celso at mitago.net> napsal(a):
> 
> > When displaying raw images taken with an Olympus E-500 camera (.orf format) the
> > extracted thumb shown has 160*120 size.
> > If I try to extract the thumb with dcraw -e it gets an usable thumbnail of 1600x1200,
> > just 10 times bigger (hint?)
> > 
> > Raw images taken with an Olympus E-510, also .orf format but seems its a diferent one,
> > are shown with normal 1600x1200 size.
> 
> Can you please provide some sample image which shows this bug? Anyway
> it will most likely be a bug in exiv2 library, which geeqie uses for
> parsing raw files.

Sure

You can download 2 samples from
http://mitago.net/tmp/Olympus_E500.orf
http://mitago.net/tmp/Olympus_E510.orf

And yes, it looks like an exiv2 problem, so if you prefer you may forward the bug

$exiv2 -pp Olympus_E500.orf
Olympus_E500.orf      Preview 1: image/jpeg, 160x120 pixels, 10167 bytes
Olympus_E500.orf      Preview 2: image/jpeg, 160x120 pixels, 10167 bytes 
                                             ^^^^
                                             No big preview


$exiv2 -pp Olympus_E500.orf
Olympus_E510.orf      Preview 1: image/jpeg, 160x120 pixels, 8295 bytes
Olympus_E510.orf      Preview 2: image/jpeg, 1600x1200 pixels, 394571 bytes

If I try with exiftool, it shows the correct ones
$ exiftool Olympus_E500.orf | grep Preview
Preview Image Valid             : Yes
Preview Image Start             : 24576
Preview Image Length            : 417457
Preview Image                   : (Binary data 417457 bytes, use -b option to extract)

$ exiftool Olympus_E510.orf | grep Preview
Preview Image Valid             : Yes
Preview Image Start             : 24576
Preview Image Length            : 394571
Preview Image                   : (Binary data 394571 bytes, use -b option to extract)

Thanks in advance

-- 
Celso González (PerroVerd)
http://mitago.net