[Digikam-users] Problem with digikam edited jpegs

[jc]

Hi Giles, and thanks for the reply. The version I am using is the one from  
the k/ubuntu repositories so I didn't compile it myself. I saw your post  
re 9.2 being available from achim now so I will update later today.

Would it be helpful if I sent you the affected jpegs?

thanks again

On Tue, 19 Jun 2007 07:00:16 +0100, Gilles Caulier  
<caulier.gilles at gmail.com> wrote:

> Hi JC,
>
> I remember to have read a comment in bugzilla about this subject, but i
> cannot find again the link... But i'm sure than the problem is relevant  
> of
> theses optimizations options passed to JPEG library :
>
> http://bugs.kde.org/show_bug.cgi?id=130996
>
> Like you can see, i have added 2 new line in digiKam JPEG encoder :
>
>
>  +    // B.K.O #130996: set horizontal and vertical Subsampling factor  
> to 1
> for a best
>  +    // quality of color picture compression.
>  +    cinfo.comp_info[0].h_samp_factor = 1;
>  +    cinfo.comp_info[0].v_samp_factor = 1;
>
> If you have recompiled digiKam yourself, you can perform  a  simple test  
> to
> comment  these line in  digikam/libs/dimg/loaders/jpegloader.cpp located  
> in
> JPEGLoader::save() method.
>
> Just recompile and install digiKam and try again.
>
> If problem diseapear, let's me hear. i will add a new option in JPEG
> settings panel to enable/disable these optimizations.
>
> Regards
>
> Gilles Caulier
>
> 2007/6/19, jc <jumpingclear at yahoo.co.uk>:
>>
>> I recently edited some jpegs in digikam 9.1 - quite heavy levels and
>> colour correction. I am having odd problems when opening them in some
>> windows programs and when printing them. On some I added a plain white
>> border. When opening the pic in windows xp picture viewer the border is
>> green (I boosted green quite a bit in the jpeg before adding the border)
>> and the colours in the photo are displayed differently to how they look  
>> in
>> digikam. I get the same effect when opening them in CS2 bridge. However,
>> in XNview and when opening in CS2 itself they display as in digikam.  
>> When
>> printing the colours are also incorrect but the printer prints unedited
>> pics ok. I tried opening one in XNview and then resaving without any
>> changes and the resaved version displays correctly in xp image viewer.
>>
>> Any ideas?
>>
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