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turn a black and white photo into halftone



 
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Old February 24th, 2008 Feb 24, 2008 2:09:55 AM -   #1 (permalink)
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Default turn a black and white photo into halftone

I am not confident with halftone techniques.
What is the best way to turn a black and white photo into halftone to screenprint it on a t-shirt ?

Thk
 
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Old October 30th, 2008 Oct 30, 2008 5:36:25 AM -   #2 (permalink)
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Default Re: turn a black and white photo into halftone

hi fred, pls give me a step by step procedure using photoshop to halfttone a black and white photo.thank you
 
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Old October 30th, 2008 Oct 30, 2008 6:23:10 AM -   #3 (permalink)
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Default Re: turn a black and white photo into halftone

to output a true halftone you will need a postcript printer - a laser printer capable of printing halftones
you can convert the image to a halftone also - using photoshop, convert image to bitmap and choose halftones as the output - choose settings you want and you are done.... those are not true halftones -
 
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Old October 30th, 2008 Oct 30, 2008 6:56:07 AM -   #4 (permalink)
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Default Re: turn a black and white photo into halftone

Quote:
Originally Posted by espeinc
to output a true halftone you will need a postcript printer - a laser printer capable of printing halftones
you can convert the image to a halftone also - using photoshop, convert image to bitmap and choose halftones as the output - choose settings you want and you are done.... those are not true halftones -
im also interested in this subject, my question is how would you make a true halftone, and what are the main differences in a true, and a non-tru halftone. last but not least how do you make a true halftone to print onto a shirt
 
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Old October 30th, 2008 Oct 30, 2008 7:47:13 AM -   #5 (permalink)
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Default Re: turn a black and white photo into halftone

i made a halftone already i followed the instruction posted by frank in another thread:
1) open image in photoshop
2) convert image to GRAYSCALE (image---mode---grayscale)
3) go back to MODE-----image----bitmap
4) output = 600.... method = halftone screen
5) frequency = 35 (the lower the value, the farther apart the dots
6) angle = 45 (or any)
7) shape = square

however according to henry it is not a true halftone. i printed it using an epson r230 inkjet printer. what is the difference between a true halftone and a not true halftone?(as asked by amp)
 
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Old October 30th, 2008 Oct 30, 2008 8:12:40 AM -   #6 (permalink)
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Default Re: turn a black and white photo into halftone

Sorry to but in, but are you saying you can't print halftones with a inkjet printer if so I have spent alot of time on something I could't even do.
 
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Old October 30th, 2008 Oct 30, 2008 8:14:59 AM -   #7 (permalink)
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Default Re: turn a black and white photo into halftone

i to have printed halftones with an inkjet r1800. im just wondering if ive been doing something wrong, or if i can improve my quality with true halftones
 
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Old October 30th, 2008 Oct 30, 2008 8:21:41 AM -   #8 (permalink)
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Default Re: turn a black and white photo into halftone

true or not to true. that is the question.

show us the way
 
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Old October 30th, 2008 Oct 30, 2008 8:24:04 AM -   #9 (permalink)
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Default Re: turn a black and white photo into halftone

in all fairness i do have a rip with my r1800. cant say i have printed a halftone without the rip. not sure if it would work or not
 
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Old October 30th, 2008 Oct 30, 2008 8:27:16 AM -   #10 (permalink)
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Default Re: turn a black and white photo into halftone

when you used your inkjet for halftones did it come out ok?
 
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Old October 30th, 2008 Oct 30, 2008 8:36:52 AM -   #11 (permalink)
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Default Re: turn a black and white photo into halftone

yes the come out great i think, im also using fastrip software. not sure how it would print without the rip. im hoping not to good since i paid good money for the rip.
 
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Old October 30th, 2008 Oct 30, 2008 8:58:08 AM -   #12 (permalink)
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Default Re: turn a black and white photo into halftone

I'll try it and don't have rip let you know how it turns out.
 
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Old October 30th, 2008 Oct 30, 2008 9:00:02 AM -   #13 (permalink)
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Default Re: turn a black and white photo into halftone

sounds good, hope it works out ok, at least you wont have to spend money on a rip
 
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Old October 30th, 2008 Oct 30, 2008 11:08:04 AM -   #14 (permalink)
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Default Re: turn a black and white photo into halftone

If I understand it right,I bugged Fred for some of this. Going to bitmap way is changing the image to dots. So it should print to most non post script printers. Non rip, in the print driver you select the screen LPI and the angle. This way,with post script printers, the driver converts the file to dots.This also has some other thing that has to me done to make it work. Like res of 2.5 time the LPI. So dots are fun...... Hope I'm getting right and helping..........P.S. the image stays normal on screen
 
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Old October 30th, 2008 Oct 30, 2008 11:13:35 AM -   #15 (permalink)
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Default Re: turn a black and white photo into halftone

Amp...How well does the Fast rip work for you.
 
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