[Digikam-users] Is jpeg rotation loseless?
mailinglists at xgm.de
Sat Jun 10 17:04:19 BST 2006
Am Samstag, 10. Juni 2006 16:23 schrieb Dudas Gabor:
> Florian Lindner wrote:
> > Hello,
> > is the jpeg rotation in digikam loseless or not?
> > Thanks,
> > Florian
> > _______________________________________________
> > Digikam-users mailing list
> > Digikam-users at kde.org
> > https://mail.kde.org/mailman/listinfo/digikam-users
> I can only quote from an email from 2 days ago:
> >>> About the rotation: Is it done in a "losless" way? Or with
> >>> > > > recompression?
> >> > >
> >> > > The CameraUI is lossless. The image editor is pixel-based and thus
> >> > > lossless if you save back to JPEG. For already downloaded images,
> >> > > use the
> > >
> > > Sorry, thats of course not true what I wrote here. Corrected version:
> > > "The image editor is pixel-based and thus lossy if you save back to
> > > JPEG"
> > >
> > > kipiplugin and cameraUI rotation is lossless, but JPEG specific. The
> > > image editor supports lossless PNG.
> And tiff of course.
And how can I tell when I use the image editor rotating feature and when the
feature from a KIPI plugin? The rotation I can do from a thumbnails context
menu. Is this done by a plugin or by the image editor?
More information about the Digikam-users