Re: Border artifact from using nohalo to scale a layer with an alpha channel

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Hi,

On Wed, Feb 24, 2016 at 11:37 PM, Elle Stone
<ellestone@xxxxxxxxxxxxxxxxxxxx> wrote:
> On 02/23/2016 07:45 AM, Øyvind Kolås wrote:
>>
>> In general it is better to open new bug-reports, rather than re-open
>> old ones seeming similar - long threads of possibly different problems
>> discussed in comments makes it hard to follow progress of an issue.
>> This issue seems like it might already have a bug though bug #698468.
>>
>> /pippin
>>
>
> Pippin, thanks! I completely forgot to ask the main question, which was
> whether to post a GIMP or a GEGL bug report.

Well it depends simply if you know (or think in case you don't know)
if this is a bug on GIMP or GEGL. If the project settings was a
mistake, developers can always re-qualify bug owners anyway. So that's
not a problem. :-)

Jehan

> Elle
>
>
>>> Scaling up or down using nohalo produces a partially transparent border
>>> around the layer if the layer has an alpha channel. This is a
>>> long-standing
>>> issue that still obtains (at least scaling down has produced the edge
>>> artifact for a long time, bug 698601 describes the opposite situtation
>>> for
>>> scaling up).
>>>
>>> I only just discovered that removing the alpha channel at least sometimes
>>> allows to scale a layer without creating the edge artifacts. So I'm not
>>> sure
>>> if removing the alpha channel always allows to scale without creating
>>> edge
>>> artifacts.
>>>
>>> This bug was confirmed using babl/GEGL/GIMP updated today.
>>>
>>> Should I file a new bug report? or maybe instead open one of the old bug
>>> reports?
>>>
>>> Elle
>
>
>
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