Subject:
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Re: Scan Quality
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Newsgroups:
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lugnet.publish
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Date:
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Wed, 24 May 2000 00:14:29 GMT
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Viewed:
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786 times
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The moire is most likely to disappear at 300dpi. If this is on a dedicated
scanning computer, I'd be very surprised if it had no provisions for reducing
moire. Since disk space isn't a concern, 300dpi will probably do you pretty
well. Oh, another trick fro reducing moire; try either aligning the source
exactly with your borders, or setting it at a slight angle to the border. This
will change the alignments of the screens used in printing with the pixels of
the scanner, hopefully reducing the cross-hatching that you're getting.
-Cheese
In lugnet.publish, Jeff Stembel writes:
> In lugnet.publish, Matthew Wilkins writes:
> > Most decent image manipulation packages like Photoshop or the like have
> > features or filters that will allow you to remove the moire.
>
> What about freeware/shareware applications (I can easily get Paint Shop Pro)?
> I can't ask my boss for Photoshop to do my own personal stuff. ;)
>
> > Unless you've got unlimited disk space, you'll probably want to keep the • scans
> > around 300dpi; anything more than that, and you will see bloating of the file
> > size.
>
> Funny you should mention that... The computer is a dedicated scanning • computer
> for a 42" scanner(I routinely scann stuff in at 400-800 dpi), and has a bunch
> of gigs free. :) Basically what I want is good scan quality, so that I can
> post the images to the 'net for people to see. I figured 75-150dpi would be
> fine for the images, but the moire makes it look horrible... I had hoped • there
> might be a resolution that the moire disappears, at which point I could
> resample it down to a reasonable resolution and post it...
>
> Jeff
>
> > In lugnet.publish, Jeff Stembel writes:
> > > I just scanned one of my many Lego posters here at work, and I was wondering • if
> > > anyone could help me with an image quality issue. These scanners don't have • a
> > > descreen option to remove the annoying cross-hatch pattern. Does anyone • know
> > > of software that can remove it, or if certain resolutions make it
> > > less/unnoticable? Also, what dpi would everyone like to see the posters
> > > scanned in at?
> > >
> > > Here is the poster:
> > > http://www.brickshelf.com/cgi-bin/gallery.cgi?i=5158
> > >
> > > Jeff
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Message is in Reply To:
 | | Re: Scan Quality
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| (...) What about freeware/shareware applications (I can easily get Paint Shop Pro)? I can't ask my boss for Photoshop to do my own personal stuff. ;) (...) Funny you should mention that... The computer is a dedicated scanning computer for a 42" (...) (24 years ago, 16-May-00, to lugnet.publish)
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