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 Post subject: Op-art
PostPosted: Mon Mar 28, 2011 3:13 pm  (#1) 
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This was the rage in my youth... My personal case is aggravated by working for several years in a building that was a permanent exhibit of one of the leaders of the genre (Yvaral), and currently living near another of his monumental works.

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Op-art-portman.png
Op-art-portman.png [ 81.55 KiB | Viewed 3177 times ]


My great personal pride is that I didn't follow any tutorials for that, I just imagined a technique myself. Not that hard actually...

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 3:17 pm  (#2) 
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It pains my Eyes, You should make a script that does that if you Can :D

Very cool looking though Ofnuts

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 3:28 pm  (#3) 
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Agreed ^

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 3:30 pm  (#4) 
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Already built into GIMP; believe it's called Engrave under Distorts menu. :)

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 3:32 pm  (#5) 
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That doesn't look like this... it looks like one of his old Sigs :D

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:01 pm  (#6) 
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lylejk wrote:
Already built into GIMP; believe it's called Engrave under Distorts menu. :)
yes, pretty close. But not that much tuning allowed...

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:03 pm  (#7) 
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Maybe you can lower the oppacity of the stripes.

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:09 pm  (#8) 
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So does that mean we get an Ofnuts Script for Op-Art

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:13 pm  (#9) 
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Here is one using the Engrave filter.

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:27 pm  (#10) 
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Who is that? I recognize that image.... Why.... That is weird... I hope it isn't your Hubby :o (but in a good way, so I don't seem all creepy, no problems with looks, just seems like it might be a bit creepy for me to say I recognize your Hubby)

Just looks familiar, not that I know the guy or something, just familiar...

Please take this the best way possible as it may have come out wrong,
Willy

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:29 pm  (#11) 
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Scott Foley

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 4:32 pm  (#12) 
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Grey's Anatomy, and Cougar Town, no wonder... Parents watch it, I am really not into that stuff :D

Thanks O,
Willy

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 Post subject: Re: Op-art
PostPosted: Mon Mar 28, 2011 6:00 pm  (#13) 
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Willy wrote:
Grey's Anatomy, and Cougar Town, no wonder... Parents watch it, I am really not into that stuff :D

Thanks O,
Willy

That freaks me out...

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 12:12 pm  (#14) 
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Color to alpha to remove the background white and a spiral gradient placed beneath.

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 1:31 pm  (#15) 
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i stumbled on a engraving script
http://pages.infinit.net/leware/engrave.html

but maybe Ofnuts has something even better boiling...

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 2:49 pm  (#16) 
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I wrote a greyscale dithering script a while back that will work with any greyscale dither pattern and convert the image.

here are samples:
Attachment:
dither.jpg
dither.jpg [ 954.89 KiB | Viewed 2576 times ]


And the script is here: http://www.silent9.com/incoming/scripts ... dither.scm

-Rob A>

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 2:55 pm  (#17) 
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Thanks Rob :)

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 3:00 pm  (#18) 
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The script is grayed out in my list. I have a grayscale pattern beneath the picture I want to dither.

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 3:11 pm  (#19) 
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Oregonian wrote:
The script is grayed out in my list. I have a grayscale pattern beneath the picture I want to dither.


It requires the image to be RGB, so just convert the image mode.

-Rob A>

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 Post subject: Re: Op-art
PostPosted: Tue Mar 29, 2011 3:43 pm  (#20) 
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RobA wrote:
I wrote a greyscale dithering script a while back that will work with any greyscale dither pattern and convert the image.

And the script is here: http://silent9.com/incoming/sc ... dither.scm

Very similar results to my technique. Do you apply a vertical blur before the threshold?

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