Full Version: Photo dots
From: John (ICTJOHN) [#1]
1 May 2006
To: ALL
All,
I am needing to learn how to make a print output that has the small greyscale dots that make up an image like you would see in a newspaper. I think it is called a "screen" or something like that. I can't use the 10%, 20%, 30% etc. greyscale within CorelDRAW, as that is too fine, it still ends up as a solid color when I make a silkscreen to print on a t-shirt.
Thanks in advance,
From: Harvey only (HARVEY-ONLY) [#2]
1 May 2006
To: John (ICTJOHN) [#1] 1 May 2006
Bring it into Paint.
Change the mode to Black & White.
Select halftone. Selece fixed 8X8.
That will set up that type of filter.
If the dots are still too fine, undo and Resample to a lower DPI then try it again.
You will end up with a great Gravoure patten.
(If the dots are too large, resample to a higher DPI then convert.)
From: Carl (CSEWELL) [#3]
1 May 2006
To: John (ICTJOHN) [#1] 1 May 2006
John;
Are you trying to do a gradient fill or are you attempting to overlay multiple colors?
I do artwork for a local t-shirt shop and they use a Postscript printer to create the 'dot' pattern you referred to. I'm not totally sure on the process, but I have emulated what they do using Ghostsript (because I don't own a postscript printer). The problem with this process is that it can NOT be print previewed! It makes it difficult to troubleshoot.
If you have a postscript printer, enable postscript on it, and then try printing.
If you get dots but need to refine them, go to the Seperations tab and then click the Print Seperations check box. Then try printing and see if you get what you need. You may need to play around with the Advance Settings on the Seperations tab. Decreasing the frequency should give you larger dots (at the dark end of the gradient anyway!).
HTH!
From: John (ICTJOHN) [#4]
1 May 2006
To: Carl (CSEWELL) [#3] 1 May 2006
Carl,
Yes, I do have a postscript printer, I have played around with the "separations" fields in the print driver but I must not have hit the right combinations yet. Thanks for the suggestions, I will go back in and play around again.....
From: Ken D. (KDEVORY) [#5]
1 May 2006
To: John (ICTJOHN) [#1] 1 May 2006
From: John (ICTJOHN) [#6]
1 May 2006
To: Harvey only (HARVEY-ONLY) [#2] 2 May 2006
Thank you Harvey,
After much playing around, I pretty much used your instructions to make the screen I was after. I did have a lot of clean-up to do as I could not get rid of all of the other colors I did not want to print on the Black screen. But it is done and now the real work begins, 250 t-shirts with 4 colors on the front...............
Thanks again,
From: Harvey only (HARVEY-ONLY) [#7]
2 May 2006
To: John (ICTJOHN) [#6] 2 May 2006
After bringing a color image into Corel Paint, select 'Image/Split Channels to' then split to the format you want, RGB, CMYK, etc. That will give you seperate files with only a grayscale image of each color.
Then you can screen each new file to what you need.