Comments on: Scanning Line Art for Use in InDesign http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php InDesignSecrets Blog and Podcast Tue, 02 Dec 2008 14:48:35 +0000 http://wordpress.org/?v=2.5.1 By: David Blatner http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-171210 David Blatner Fri, 02 Nov 2007 12:50:47 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-171210 Brian, I said 800 was reasonable for newsprint, not high end printing. I wouldn't use less than 1200 for books. If your device is 1500, I would definitely aim for a 1500 ppi bitmapped image. (Also, on some devices, having the bitmapped image be the same resolution as the printer means it will print far faster, as it doesn't have to resample.) Brian, I said 800 was reasonable for newsprint, not high end printing. I wouldn’t use less than 1200 for books. If your device is 1500, I would definitely aim for a 1500 ppi bitmapped image. (Also, on some devices, having the bitmapped image be the same resolution as the printer means it will print far faster, as it doesn’t have to resample.)

]]> By: Brian http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-171195 Brian Fri, 02 Nov 2007 12:37:20 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-171195 Confused. I thought you want bitmap images at 1200dpi for high end printing but the article says 800? Seems it would get rough. We print to 1500 ctp device. Confused. I thought you want bitmap images at 1200dpi for high end printing but the article says 800? Seems it would get rough. We print to 1500 ctp device.

]]> By: Chris M. http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-169645 Chris M. Wed, 31 Oct 2007 19:25:41 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-169645 This is quite similar to a method I use in the office whenever I need to scan manga book pages, except I don't sharpen much and instead of Threshold I use Levels with a lot of fine tuning. From there on I convert it to bitmap using 50% Threshold (rarely diffusion as it has its own quirks). A lot of the scanning largely depends on the artwork (some can get quite complicated with several uses of screentones). I'll definitely consider using sharpening and Threshold. It'd probably cut out a lot of the stranger results from some people using diffusion dither when converting to bitmap. This is quite similar to a method I use in the office whenever I need to scan manga book pages, except I don’t sharpen much and instead of Threshold I use Levels with a lot of fine tuning. From there on I convert it to bitmap using 50% Threshold (rarely diffusion as it has its own quirks). A lot of the scanning largely depends on the artwork (some can get quite complicated with several uses of screentones). I’ll definitely consider using sharpening and Threshold. It’d probably cut out a lot of the stranger results from some people using diffusion dither when converting to bitmap.

]]> By: Dan Curry http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-168912 Dan Curry Tue, 30 Oct 2007 13:13:26 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-168912 DB, I've been a huge fan of this method ever since I first read it in your excelllent book "Real World Photoshop 6". DB, I’ve been a huge fan of this method ever since I first read it in your excelllent book “Real World Photoshop 6″.

]]> By: Eugene http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-167032 Eugene Sun, 28 Oct 2007 10:15:57 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-167032 Thank you Klaus, I have something similar that I have made myself before. Thank you Klaus, I have something similar that I have made myself before.

]]> By: Klaus Nordby http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-166481 Klaus Nordby Sun, 28 Oct 2007 00:15:54 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-166481 Eugene, I have made various Actions for that kind of layered Overlay highpass sharpening -- but wait, there's more! For I split the highlight sharps and shadow sharps into two layers, which enables me to easily paint out some sharpening which I don't want, like ungainly light halos in too prominent places, like the ridges of mountains, telephone lines, etc. I've put the Action here, if you'd like to play with it: www.klausnordby.com/repository/Sharpen.atn Note that this version needs to work on a flattened file with a "Background" layer, or you'll get errors. Eugene, I have made various Actions for that kind of layered Overlay highpass sharpening — but wait, there’s more! For I split the highlight sharps and shadow sharps into two layers, which enables me to easily paint out some sharpening which I don’t want, like ungainly light halos in too prominent places, like the ridges of mountains, telephone lines, etc.

I’ve put the Action here, if you’d like to play with it:
http://www.klausnordby.com/repository/Sharpen.atn
Note that this version needs to work on a flattened file with a “Background” layer, or you’ll get errors.

]]> By: Eugene http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165729 Eugene Sat, 27 Oct 2007 10:10:03 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165729 Does anyone use that trick for sharpening, dupe the layer, blend mode overlay, then give it a high pass. It's great for sharpening, but I've never tried it on line-art. Does anyone use that trick for sharpening, dupe the layer, blend mode overlay, then give it a high pass. It’s great for sharpening, but I’ve never tried it on line-art.

]]> By: Anne-Marie http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165442 Anne-Marie Sat, 27 Oct 2007 03:35:28 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165442 Often when I scan line art, the grayscale artwork needs to be "beefed up." (maybe I'm scanning wrong ...) But a trick that's served me well is to dupe the layer two or three times and change each dupe to Multiply mode. I play around with each layer's opacity to get the final effect I want; then I flatten it down. Just wanted to throw that in there. Often when I scan line art, the grayscale artwork needs to be “beefed up.” (maybe I’m scanning wrong …) But a trick that’s served me well is to dupe the layer two or three times and change each dupe to Multiply mode. I play around with each layer’s opacity to get the final effect I want; then I flatten it down. Just wanted to throw that in there.

]]> By: Barbara Emanuel http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165197 Barbara Emanuel Fri, 26 Oct 2007 21:05:56 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165197 oohhh... I just finished a book this week where I had to do exactly that... Too bad I didn't know all this before... :-( Well, next time... oohhh… I just finished a book this week where I had to do exactly that… Too bad I didn’t know all this before… :-(

Well, next time…

]]> By: Eugene Tyson http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165062 Eugene Tyson Fri, 26 Oct 2007 16:15:33 +0000 http://indesignsecrets.com/scanning-line-art-for-use-in-indesign.php#comment-165062 Hey cool, I've been doing it right all along, who would have thought. When I was at Scanning School it was suggested that these scans can be improved on if you double the f.s. and scan at 1200 and then reduce the size in Photoshop. I was never too keen on this method and it's not mentioned here, so I was wondering if there is any truth to this, is it a myth or is it true? And of course, if I was to bring something like that into Illustrator I would draw it with the pen tool, much more accurate than the the Live Trace... :-) Hey cool, I’ve been doing it right all along, who would have thought. When I was at Scanning School it was suggested that these scans can be improved on if you double the f.s. and scan at 1200 and then reduce the size in Photoshop. I was never too keen on this method and it’s not mentioned here, so I was wondering if there is any truth to this, is it a myth or is it true?

And of course, if I was to bring something like that into Illustrator I would draw it with the pen tool, much more accurate than the the Live Trace… :-)

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