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03-12-2007
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Are your watercolors B&W or "sťpia" ones? "halftone" means "demi-teinte"?

Make a 300 DPI scan of the illustration (B&W or color),save it as a JPG file or convert it as PSD file in photoshop.(very often one have to "clean" the scan and PSD file keeps the quality and info of color for each pixel).

Do you mean you want/have to do yourself offset printing screen film(you speak of frequency and size of dot," offset printing dot"?) ?
Usually, you give the file (JPG or PSD, sometimes EPS)to the printer (or the graphic designer) they convert your file from "three screen color"(RedGreenBlue)(the computer image file mode) in the four printing color(CyanMagentaYellowBlack), and then after make the offset printing film screen.
Hope it may help you...

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03-12-2007
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That kind of effect is called vector, you can find at the youtube videos theaching how to do a vector, it takes a long time to do it ...

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03-12-2007
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thanks for your response, modillustr
what i'm doing is using these 'halftone' images for screen-printing (or serigraphy)
gradients don't print well with this technique, so i have to change it to dots

you can see these dots in works by Roy Lichtenstein or any other comics artist
http://www.telegraph.co.uk/arts/grap...LICHT_1965.jpg
The same effect is done when you do hatching with pencil or pen

i had to do my own tests because I'm using a specific mesh size and I'm also printing on fabric
I think my tests are successful now

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03-12-2007
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oh here is my new problem...

left: original photo
right: edited photo


usajrf.org

i used the Posterize function in Photoshop to achieve this effect
I'd like to separate those different layers (dark, medium, light greys)
Is there a way?
Or maybe there is another way I could use to create layers (for a multi-colour layered screen print)

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04-12-2007
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About Avant garde question:
First... I tryed to read the signature , "foto e dipinti Nasvel?"and got no valable info on google with "nasvel+photo".

It could have been (perfect10 or mikelowrey point of vue) or not have been done with photoshop(traditionnal way, drawn on a layer over a photo print and then after digitally gathered/Allius 'one).I see no particular problem to do it with photoshop mixing the use of tools(effects), brushes and pencils on a layer.It just remind me the advertising agency "rough/sketches" made with felt pens on "transparent" paper(Schoellershammer's paper for example) of the 80's.No really interesting.


Thanks gius, with your answer, I understand better.
I searched the french word "tramer" on google and I got "halftone screen".
Therefore we are speaking of the same technique.
As I sayed I have never done myself "halftone screen" for a computer image.
I just have found some technical pages on google, but you certainly know them.
http://www.dtp-aus.com/hlftone.htm
http://www.ted.photographer.org.uk/p..._halftones.htm
http://livedocs.adobe.com/en_US/InDe...D3E5BE2AA.html

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04-12-2007
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Quote:
Originally Posted by gius View Post
oh here is my new problem...

i used the Posterize function in Photoshop to achieve this effect
I'd like to separate those different layers (dark, medium, light greys)
Is there a way?
Or maybe there is another way I could use to create layers (for a multi-colour layered screen print)
You can use the "select color range" or the magic wand tool with a high sensitivity to make a selection of each separate gray tone. Then hit copy, make a new layer, and paste. Repeat for each shade, and you'll have a layer for each.

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30-12-2007
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Photoshop CS 8.0 not responding
I am having a problem with Photoshop CS 8.0 . Whenever I try to open up Adobe Photoshop CS it goes about its business and then stops at "Reading Text Global Resources... Done" and the title of the window says "Adobe Photoshop CS (Not Responding)".

These are the details of the problem

Description:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: Photoshop.exe
Application Version: 8.0.0.0
Application Timestamp: 3f8fad4d
Hang Signature: 9a52
Hang Type: 2048
OS Version: 6.0.6000.2.0.0.768.2
Locale ID: 1033
Additional Hang Signature 1: 37cdc4efbbe6ff51978f03ce3e3287b4
Additional Hang Signature 2: 3b2d
Additional Hang Signature 3: 7590fd8c6f1bee7643a9cf98b7dd09b0
Additional Hang Signature 4: 9a52
Additional Hang Signature 5: 37cdc4efbbe6ff51978f03ce3e3287b4
Additional Hang Signature 6: 3b2d
Additional Hang Signature 7: 7590fd8c6f1bee7643a9cf98b7dd09b0

Does anyone know how to fix it? I tried pressing CTRL + ALT + SHIFT, nothing happened. I tried looking for the preferences file, but it's nowhere to be found!

Help!!! I'm totally disabled without my photoshop!

Thanks a million in advance!

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30-12-2007
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I just dont have the patience !

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20-03-2008
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Can anyone tell me where i can get photoshop?

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30-03-2008
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Quote:
Originally Posted by Mchunu<3 View Post
Can anyone tell me where i can get photoshop?
umm amazon? adobe.com
if your a student you can get the student version for like 1/4 of the original price. its made of win!

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31-03-2008
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The student version doesn't lack in anything , does it ? For example, missing filters, functions, etc. as if it is just a demo version

I actually have Photoshop already--just considering getting a different program while I'm a student

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31-03-2008
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The student version is great. Your not really missing anything, definetly not a demo version thing...I got the whole Adobe package for $200

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31-03-2008
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^how?

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31-03-2008
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Quote:
Originally Posted by gius View Post
The student version doesn't lack in anything , does it ? For example, missing filters, functions, etc. as if it is just a demo version

I actually have Photoshop already--just considering getting a different program while I'm a student
nope not a thing!! I just bought the CS3 Extended from Amazon for £140...a fraction of the £600 price tag for the "normal" version. Everything is the exact same and not a single thing missing!!

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08-04-2008
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For those who can't afford the full program, Adobe just came out with a free online edition of Photoshop. You can store up to 2GB of photos for free: http://www.adobe.com/products/photos...?promoid=CBTVM

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