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level_0
 Post subject: sharp outlines
PostPosted: Mon Aug 26, 2019 12:37 pm  (#1) 
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Posts: 1792
Location: France
GIMP Version: 2.10.12
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:wvy
To start using the Bevel Reflect tutorial from gimper66, I searched patterns on the internet but they have crenelated edges like this one:

Image

I tried several filters but without arriving at a sharp outline. :(

Is there a way to get there?

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2.10.14 (Samj),2.10.21 (Samj) and 2.10.23(Samj) OS Windows 10 Home 64 bits

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Nidhogg
 Post subject: Re: sharp outlines
PostPosted: Mon Aug 26, 2019 1:18 pm  (#2) 
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Trace centerline, and stroke that path. Pupil was added with the round sharp brush. Time: 30 seconds.

viewtopic.php?f=9&t=17485

Image

Or create new white layer, set opacity to 70% and draw it on a transparent layer with round brush? Time: 2 minutes.
Mouse drawing just sucks...:hehe

Image

Median blur works too, but the result is not that good.
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Wallace
 Post subject: Re: sharp outlines
PostPosted: Mon Aug 26, 2019 2:15 pm  (#3) 
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Posts: 13068
Location: Native to NYC living in Arizona, Gimp 2.8 & 2.10, Win 11 PC.
There is also a technique,
using Gaussian Blur and then Color Curves set to Alpha.
However, this technique can be helpful with reducing jagged/rough edges.
It's not very effective when fixing poorly composed line drawings..

I'm pretty sure, that there are better line drawings available on the internet.
Just doing a simple search for,
"Turkey Line Drawing" turned up plenty of line drawings,
which are much better.

Image

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lylejk
 Post subject: Re: sharp outlines
PostPosted: Tue Aug 27, 2019 12:58 am  (#4) 
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Posts: 12531
OK; first the quicky. Did some anti-aliasing work and then Stamped.

Attachment:
quicky.png
quicky.png [ 302.27 KiB | Viewed 3608 times ]


Now the not so quicky. I inverted the quicky result and ran Skeletonize and did some line artifact cleanup work (not detailed).

Attachment:
notsoquicky_skel.png
notsoquicky_skel.png [ 32.62 KiB | Viewed 3608 times ]


I then inverted, ran Morphology preset to thicken the lines and then did some more cleanup work and added back the pupil.

Attachment:
notsoquicky_final.png
notsoquicky_final.png [ 301.43 KiB | Viewed 3608 times ]

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Lyle

Psalm 109:8

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lylejk
 Post subject: Re: sharp outlines
PostPosted: Tue Aug 27, 2019 1:55 pm  (#5) 
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OK; just had to bling your turkey, Level_0. Ran BRL on the outline created earlier and then filled in the gaps. :)

Image

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Lyle

Psalm 109:8

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