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Geek Culture / could someone help me out?

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The crazy
19
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Joined: 20th Jan 2005
Location: Behind you
Posted: 2nd Sep 2006 07:04
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Hi, I need to know how to make a black and white picture just two colors. totally black and totally white. I need to do this for an art project. It should be a simple thing to do but I dont have a clue

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Medieval Coder
18
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Joined: 31st Dec 2005
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Posted: 2nd Sep 2006 07:18
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like on the computer or by hand?

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The crazy
19
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Joined: 20th Jan 2005
Location: Behind you
Posted: 2nd Sep 2006 07:38
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Oh, I'm sorry. I forgot to mention it's in photoshop. What I'm doing is taking the picture, making it only black shapes and white shapes, then making it in construction paper. Sorry now that I look back at it, the post was pretty vague.

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indi
22
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Joined: 26th Aug 2002
Location: Earth, Brisbane, Australia
Posted: 2nd Sep 2006 08:18
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look at the channels in photoshop

drop the green and red channels onto each other and you will get an ipod add effect.

search for channel masking or alpha masking in photoshop tutorials.

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Xander
21
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Joined: 3rd Mar 2003
Location: In college...yeah!
Posted: 2nd Sep 2006 08:49
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Look into the "threshold" tools. I use the Gimp when I'm at home, so I haven't used photoshop for a while. But the threshold tool should be easy enough to find. Just max it out, and taa-daa, black and white. I think...

Xander Moser - Bolt Software - Firewall
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Tinkergirl
21
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Joined: 1st Jul 2003
Location: United Kingdom
Posted: 2nd Sep 2006 08:54
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Either that, or go to the Image/Adjust menu, and find Brightness/Contrast. Then, ramp the contrast up to full, and adjust the brightness to decide where you want your black/white cutoff to be (good if the image is mostly white or black, but you still want some detail).

That's how I'd do it.

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