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Chroma Subsampling in JPEG output

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Mark Greenwood

Chroma Subsampling in JPEG output

What is the meaning of the option 'Chroma Subsampling' in the 'JPEG quality' settings? What should I set it to to ensure the highest quality JPEG output (file size is irrelevant for my purposes, I just want the highest quality JPEG files).

Thanks,

Mark
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Gilles Caulier-4

Re: Chroma Subsampling in JPEG output

Use SHIFT+F1 over the settings to get contextual help. All is explained.

Gilles Caulier

2010/12/6 Mark Greenwood <[hidden email]>:

>
> What is the meaning of the option 'Chroma Subsampling' in the 'JPEG quality' settings? What should I set it to to ensure the highest quality JPEG output (file size is irrelevant for my purposes, I just want the highest quality JPEG files).
>
> Thanks,
>
> Mark
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>

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Marcel Wiesweg

Re: Chroma Subsampling in JPEG output

In reply to this post by Mark Greenwood

> What is the meaning of the option 'Chroma Subsampling' in the 'JPEG
> quality' settings? What should I set it to to ensure the highest quality
> JPEG output (file size is irrelevant for my purposes, I just want the
> highest quality JPEG files).

Btw, if file size is irrelevant, you should not use JPEG but a lossless format
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Mark Greenwood

Re: Chroma Subsampling in JPEG output

In reply to this post by Gilles Caulier-4

On Tuesday 07 Dec 2010 08:07:27 Gilles Caulier wrote:
> Use SHIFT+F1 over the settings to get contextual help. All is explained.

Thanks, a very useful tip!

Mark

>
> Gilles Caulier
>
> 2010/12/6 Mark Greenwood <[hidden email]>:
> >
> > What is the meaning of the option 'Chroma Subsampling' in the 'JPEG quality' settings? What should I set it to to ensure the highest quality JPEG output (file size is irrelevant for my purposes, I just want the highest quality JPEG files).
> >
> > Thanks,
> >
> > Mark
> > _______________________________________________
> > Digikam-users mailing list
> > [hidden email]
> > https://mail.kde.org/mailman/listinfo/digikam-users
> >
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>

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