Digikam: Batch Recompress Images

[John Bestevaar]

Hi All
I have uncovered a need for my web project that Digikam cannot do. =-O

Batch re-compress images to a specified file-size in bytes. 8-)

Would this capability in Digikam be useful to others? :-D
Example case: A collection of hundreds of jpg images , filesizes vary from about 200 Kb to 12Mb. Image sizes vary between
about 800x600 pixels and 5000x4000 pixels. Resolutions vary from 72 pixels/inch to 300 pixels/inch.

After Batch processing in Digikam all my images are 800x600 pixels and 72 pixels/inch but the filesizes still vary between about 35Kb and 400Kb. I want to make the file-sizes of all about 75Kb.  :-!

Means i will have to increase my Digikam donation. :-P

Regards JohnB

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Le 30/09/2011 08:31, John Bestevaar a écrit :

> After Batch processing in Digikam all my images are 800x600 pixels and
> 72 pixels/inch but the filesizes still vary between about 35Kb and
> 400Kb. I want to make the file-sizes of*all* about 75Kb. :-!

if the image don't compress (mist, for example), compressing it anyway
will make it completely unusable :-(

jdd

--
http://www.dodin.net
http://pizzanetti.fr
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[Gilles Caulier-4]

Please report this whish to KDE bugzilla.

Thanks

Gilles Caulier

2011/9/30 John Bestevaar <[hidden email]>:

> Hi All
> I have uncovered a need for my web project that Digikam cannot do. =-O
>
> Batch re-compress images to a specified file-size in bytes. 8-)
>
> Would this capability in Digikam be useful to others? :-D
> Example case: A collection of hundreds of jpg images , filesizes vary from
> about 200 Kb to 12Mb. Image sizes vary between
> about 800x600 pixels and 5000x4000 pixels. Resolutions vary from 72
> pixels/inch to 300 pixels/inch.
>
> After Batch processing in Digikam all my images are 800x600 pixels and 72
> pixels/inch but the filesizes still vary between about 35Kb and 400Kb. I
> want to make the file-sizes of all about 75Kb.  :-!
>
> Means i will have to increase my Digikam donation. :-P
>
> Regards JohnB
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>

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