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Geek Culture / Help - Sketch filter

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Matty H
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Posted: 19th Jun 2015 16:04
I am doing a poster for my lads football team. I have it finished but just can't get the final filter correct.

On PhotoFunia they do a great sketch effect but the resolution is greatly reduced. I was hoping someone here may know how to do this effect as good as PhotoFunia but without losing the resolution.

I will attach original image to this post and what I am aiming for to the next post, thanks

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Matty H
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Posted: 19th Jun 2015 16:05 Edited at: 19th Jun 2015 16:06
Here is what I am after



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BatVink
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Posted: 19th Jun 2015 16:38
Not identical, but similar...

Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt

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Matty H
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Posted: 19th Jun 2015 17:34
That's great BatVink, thanks.

If you (or anyone) use GIMP then could you tell me what steps you took so I can try?

For that particular image BatVink, the effect is lost a little around the edges of the players who are on a white background, while the players in front of the adults blend(smudge) well into their background.

I presume this is because the filter had something to work with around those players? Perhaps if I add a background in first, instead of just plain white, the effect may be better for the edges?

BatVink
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Posted: 19th Jun 2015 19:09
Here's another version (you'll have to add the vignette)

It's not one filter, it's a few things. I'm using PhotoPlus, but the tools are all similar.

For this version, start by copying the image:
Selected black tops of adults. These are so dark, they don't respond to reducing the contrast. After selecting, lightened them with a white brush set to "Lighten", 20% opacity.
Next, pick out any other very dark areas and lighten a bit
Convert to greyscale
Reduce contrast by around 30%
Reduce image to 50%, the pencil filter isn't able to scale up to such a large image. We won't lose anything by scaling down at this stage.
Apply a "Pencil" filter. Make the lines long and prominent
Scale back up to original size
Copy and paste back over the original (which should also be greyscale now)
Set layer to Screen
Reduce transparency to get the look you desire.
Where areas have faded out, use a multiply brush on the bottom layer, 20% opacity, and draw them back out by painting over them. I had to do this for the outer players.

This is just a quick attempt, you can get it more precise with more time.

Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt

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bitJericho
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Posted: 19th Jun 2015 22:13 Edited at: 19th Jun 2015 22:13
Here are the results I had with Gimp trying to recreate the exact effect. What I did was converted it to grayscale, created a new layer and added noise, then I set that layer's mode to "dodge", then I made a third layer for the fade effect, made a black/white spherical gradient, and set that layer to mode overlay. It still needs a bit more work to get closer.

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swissolo
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Posted: 19th Jun 2015 23:01
Try out some of the GIMPressionist line art filters

Matty H
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Posted: 20th Jun 2015 00:52
Thanks people.

I like the new one BatVink, I will try those steps with GIMP and see if I can recreate it. If not I may just use the one you provided.

I will also look at what you did bitJericho, although it's not quite as close as what BatVink did.

I will be finalising this over the weekend to print next week. I will post the final image. Anyone else feel free to improve upon what we have already if it's possible

Thanks also swissolo, I have seen GIMPressionist but did not know what it did, I will try it tomorrow.

bitJericho
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Posted: 20th Jun 2015 13:08 Edited at: 20th Jun 2015 13:10
Here's my best effort! Little bit of contrast adjustments, different type of noise (rgb noise) repeated over and over, and then blurred slightly and resharpened to make it a little less harsh, ovalized the gradient and use the gradient editor to make the gradient sharply drop off.

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bitJericho
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Posted: 20th Jun 2015 13:10
And the original gimp file

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Matty H
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Posted: 22nd Jun 2015 12:57 Edited at: 22nd Jun 2015 12:58
Thanks bitJericho and everyone else who helped.

Here is the final image, it turned out that GIMPressionist was exactly what I needed to get that sketchy texture. Never got it to look quite as good as the original I posted at the beginning so it's a slightly different effect but I'm happy with it

This is low res version:



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Matty H
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Posted: 22nd Jun 2015 12:59 Edited at: 22nd Jun 2015 13:00
Here is a single pop art filter from http://www.befunky.com/create/

After all that work, this may actually be the final poster

Low res version:



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bitJericho
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Posted: 22nd Jun 2015 13:27 Edited at: 22nd Jun 2015 13:28
You should try and adjust that little girl's hairline at the forehead to bring out her appearance a little more. Also give an outline to the face on the boy looking left. Remember the difference between being good and completely awesome are always the little details. I'd also get rid of the splotch on the cheek of the coach pointing right. Anyway it looks fantastic so far!

Matty H
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Posted: 22nd Jun 2015 13:59
Yes, I think you are right. I will fix the three things you pointed out, thanks

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