"Artefacts" on the image in Edit

[Chris Green]

While doing the changes to lighten my underexposed pictures that I
asked about recently I noticed that there are a lot of Artefacts on
the Edit screen.  In particular there are white dots on very dark
areas and dark dots on very light areas.

These artefacts only appear on the edit screen, after doing some
changes using the Curves Adjust tool and saving them the image in the
main Digikam display doesn't show the artefacts.  So it's not a *big*
problem but is is a bit distrcting.

--
Chris Green

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[Gilles Caulier-4]

Please give us some screen-shoot... Do not post on ML, it's limited of
attachment size...

Gilles Caulier

2009/10/2 Chris G <[hidden email]>:

> While doing the changes to lighten my underexposed pictures that I
> asked about recently I noticed that there are a lot of Artefacts on
> the Edit screen.  In particular there are white dots on very dark
> areas and dark dots on very light areas.
>
> These artefacts only appear on the edit screen, after doing some
> changes using the Curves Adjust tool and saving them the image in the
> main Digikam display doesn't show the artefacts.  So it's not a *big*
> problem but is is a bit distrcting.
>
> --
> Chris Green
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>

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Isn't it the tools to highlight too bright/dark areas ?
Try F10/F11 to toggle these.

Nicolas

Le vendredi 2 octobre 2009 18:21:12, Chris G a écrit :

> While doing the changes to lighten my underexposed pictures that I
> asked about recently I noticed that there are a lot of Artefacts on
> the Edit screen.  In particular there are white dots on very dark
> areas and dark dots on very light areas.
>
> These artefacts only appear on the edit screen, after doing some
> changes using the Curves Adjust tool and saving them the image in the
> main Digikam display doesn't show the artefacts.  So it's not a *big*
> problem but is is a bit distrcting.
>

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[Chris Green]

On Fri, Oct 02, 2009 at 06:34:39PM +0200, Gilles Caulier wrote:
> Please give us some screen-shoot... Do not post on ML, it's limited of
> attachment size...
>
Here you go:-

    http://www.isbd.net/images/Screenshot.png

You can see white dots on/near both the kittens and at the top right.

> Gilles Caulier
>
> 2009/10/2 Chris G <[hidden email]>:
> > While doing the changes to lighten my underexposed pictures that I
> > asked about recently I noticed that there are a lot of Artefacts on
> > the Edit screen.  In particular there are white dots on very dark
> > areas and dark dots on very light areas.
> >
> > These artefacts only appear on the edit screen, after doing some
> > changes using the Curves Adjust tool and saving them the image in the
> > main Digikam display doesn't show the artefacts.  So it's not a *big*
> > problem but is is a bit distrcting.
> >
> > --
> > Chris Green
> >
> > _______________________________________________
> > 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
>

--
Chris Green

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[Chris Green]

On Fri, Oct 02, 2009 at 06:52:44PM +0200, Nicolas Morange wrote:

> Le vendredi 2 octobre 2009 18:21:12, Chris G a écrit :
> > While doing the changes to lighten my underexposed pictures that I
> > asked about recently I noticed that there are a lot of Artefacts on
> > the Edit screen.  In particular there are white dots on very dark
> > areas and dark dots on very light areas.
> >
> > These artefacts only appear on the edit screen, after doing some
> > changes using the Curves Adjust tool and saving them the image in the
> > main Digikam display doesn't show the artefacts.  So it's not a *big*
> > problem but is is a bit distrcting.
> >
> Isn't it the tools to highlight too bright/dark areas ?
> Try F10/F11 to toggle these.
>

So it is, what are they supposed to be telling me (apart from showing
me the darkest areas) and is there something specific one can do with
them?

--
Chris Green

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[Sveinn í Felli]

Hi.

Chris G wrote:

> On Fri, Oct 02, 2009 at 06:52:44PM +0200, Nicolas Morange wrote:
>> Le vendredi 2 octobre 2009 18:21:12, Chris G a écrit :
>>> While doing the changes to lighten my underexposed pictures that I
>>> asked about recently I noticed that there are a lot of Artefacts on
>>> the Edit screen.  In particular there are white dots on very dark
>>> areas and dark dots on very light areas.
>>>
>>> These artefacts only appear on the edit screen, after doing some
>>> changes using the Curves Adjust tool and saving them the image in the
>>> main Digikam display doesn't show the artefacts.  So it's not a *big*
>>> problem but is is a bit distrcting.
>>>
>> Isn't it the tools to highlight too bright/dark areas ?
>> Try F10/F11 to toggle these.
>>
> So it is, what are they supposed to be telling me (apart from showing
> me the darkest areas) and is there something specific one can do with
> them?
>

Yes, it is. Their function is to delimit supersaturated
black areas and overexposed (burned) white ones,
respectively. You see the icons/buttons in lower right
corner, blue toggle buttons with exclamation marks on them.
Toggle the buttons if their warning signs distract your eyes.

Best,

Sveinn í Felli

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