[digiKam-users] Extract thumbnails from thumbnails-digikam.db

[Dmitri Popov]

Ah, the invite went to my work email address. I've accepted the invitation. Thanks, Gilles!

Best,
Dmitri
---
Tōkyō Made - https://tokyoma.de/

June 9, 2021 1:24 PM, "Gilles Caulier" <caulier.gilles at gmail.com> wrote:

> yes,i know your nickname. Invitation was sent this morning already (:-)))
> 
> Gilles
> Le mer. 9 juin 2021 à 13:23, Dmitri Popov <dmpop at tokyoma.de> a écrit :
> 
>> Hi Gilles,
>> 
>>> I invite you to contribute to the github project where is store the PGF to PNG converter.
>> 
>> That would be perfect! My GitHub username is dmpop
>> 
>> Kind regards,
>> Dmitri
>> ---
>> Tōkyō Made - https://tokyoma.de/
>> 
>> June 9, 2021 1:18 PM, "Gilles Caulier" <caulier.gilles at gmail.com> wrote:
>> 
>>> I invite you to contribute to the github project where is store the PGF to PNG converter. This is
>>> the right place to store extra scripts to extract PGF blob from database.
>>> 
>>> Best regards
>>> Gilles
>>> Le mer. 9 juin 2021 à 12:45, Dmitri Popov <dmpop at tokyoma.de> a écrit :
>>> 
>>>> Sure thing! I'll ping you when the script is ready. Thanks, Gilles!
>>>> 
>>>> Best,
>>>> Dmitri
>>>> ---
>>>> Tōkyō Made - https://tokyoma.de/
>>>> 
>>>> June 9, 2021 10:43 AM, "Gilles Caulier" <caulier.gilles at gmail.com> wrote:
>>>> 
>>>>> Hi Dmitri,
>>>>> 
>>>>> If you have a script to extract thumbnails as PGF blobs from digiKam database, we can share
>> files
>>>>> in my github project.
>>>>> 
>>>>> Best
>>>>> 
>>>>> Gilles
>>>>> Le mer. 9 juin 2021 à 09:00, Dmitri Popov <dmpop at tokyoma.de> a écrit :
>>>>> 
>>>>>> Thank you very much for your prompt reply, Gilles!
>>>>>> 
>>>>>> Best,
>>>>>> Dmitri
>>>>>> 
>>>>>> June 8, 2021 6:36 PM, "Gilles Caulier" <caulier.gilles at gmail.com> wrote:
>>>>>> 
>>>>>>> hi Dmitri,
>>>>>>> 
>>>>>>> Hey no, it's not a JPEG image, it's PGF image image (using wavelets compression). It's better
>>>>>> than
>>>>>>> JPEG in speed, quality, and size.
>>>>>>> 
>>>>>>> To convert this PGF t PNG for ex, use my CLI tool from my github account :
>>>>>>> 
>>>>>>> https://github.com/cgilles/digikam-pgf-database
>>>>>>> 
>>>>>>> Best regards
>>>>>>> 
>>>>>>> Gilles Caulier
>>>>>>> Le mar. 8 juin 2021 à 18:20, Dmitri Popov <dmpop at tokyoma.de> a écrit :
>>>>>>> 
>>>>>>>> Hello,
>>>>>>>> 
>>>>>>>> A technical question from someone who has no idea what he's doing. :-) I'm trying to exact a
>>>>>>>> thumbnail directly from the thumbnails-digikam.db database, but this command gives me a file
>>>>>> that
>>>>>>>> is not recognized as JPEG:
>>>>>>>> 
>>>>>>>> sqlite thumbnails-digikam.db "SELECT writefile('thumbnail.jpg', data) FROM Thumbnails WHERE
>>>>>> id=1;"
>>>>>>>> 
>>>>>>>> What am I doing wrong?
>>>>>>>> 
>>>>>>>> Thank you!
>>>>>>>> 
>>>>>>>> Kind regards,
>>>>>>>> Dmitri
>>>>>>>> ---
>>>>>>>> Tōkyō Made - https://tokyoma.de/