How to digitize microfiche?
DaveC
digital form? Printing the pages (via microfiche printer) and then
scanning the printouts was suggested. Any possibility of direct scanning?
May be interested in equipment to do this, if you have a solution.
Suggestions are welcome.
Sorry about the modified return address, but I hate getting spammed.
The correct address is listed below, if you chose to e-mail me.
Thanks.
Enjoy,
Dave
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Dave Carpenter
Sound Logic
Note: "From" address is invalid.
Use: "voicebox at dnai dot com" with the"@"and"."inserted appropriately.
Brad Boegler
the blown up image on a microfiche viewer. It worked ok and was quick. Just
an idea...
Brad
Matt Roberds
bo...@supernews.com blathered on about...
>
>How can one get microfiche images (each 6mm x 9mm, 180 per film) into
>digital form? Printing the pages (via microfiche printer) and then
>scanning the printouts was suggested. Any possibility of direct scanning?
I know that you can get scanners designed to directly scan 35mm
photographic slides or negatives. Perhaps such a scanner could be
used with or modified for microfiche. Check with people like Nikon,
Xerox, and Kodak - this has probably come up before.
If these have been reduced from a "standard" sheet of paper, about
216x279 mm, then it's about a 35x reduction. Some flatbed scanners
can be set to scan transparencies, and can get hardware resolutions
of 1200 dpi or more. This only translates into about a 35 dpi
resolution for each frame on the microfilm, but if the information is
not too detailed, might be marginally useful. Higher hardware
resolutions will get better results. Some scanners use software
interpolation, but for this application, you probably want the
resolution in hardware.
Good luck!
Matt Roberds
mrob...@worldnet.att.net
Jerry G.
microfish type, they should have scanners that are designed for the
job. You should get discent results with the proper one...
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============= Message Separator ================
DaveC wrote in message ...
|How can one get microfiche images (each 6mm x 9mm, 180 per film) into
|digital form? Printing the pages (via microfiche printer) and then
|scanning the printouts was suggested. Any possibility of direct
scanning?
|
Jim
DaveC wrote in message ...
>How can one get microfiche images (each 6mm x 9mm, 180 per film) into
>digital form? Printing the pages (via microfiche printer) and then
>scanning the printouts was suggested. Any possibility of direct scanning?
>
>May be interested in equipment to do this, if you have a solution.
>
>Suggestions are welcome.
I do not know what the resolution is (in pixels/inch), but my Dad has a
nifty little scanner that can scan negatives and color slides directly into
his computer. He can then manipulate them with his graphics program. I
know it can do 35 mm slides and negatives and I think it can also do larger
formats.
Sorry, I do not know the name of who made it, but you may want to look into
this.
Jim
N8EE
Michael A. Covington
scan them? They're used a fair bit in professional photography.
--
Michael A. Covington / AI Center / The University of Georgia
http://www.ai.uga.edu/~mc http://www.mindspring.com/~covington <><
Mario Köppen
>
> *chuckle* Has nobody here heard of 4x5-inch sheet film, or the scanners that
> scan them? They're used a fair bit in professional photography.
Correct. Have a look at www.heidelbergusa.com under products -
prepress - input - Topas XL.
It's a 11,000 dpi (!) drum scanner - should be sufficient for
micro films or alike. Try to find a company in printing / prepress
business they should have a drum scanner. I suppose you wouldn't
buy one for yourself as they are $100,000+ ;)
mk2
NO SPAM
DaveC wrote:
> How can one get microfiche images (each 6mm x 9mm, 180 per film) into
> digital form? Printing the pages (via microfiche printer) and then
> scanning the printouts was suggested. Any possibility of direct scanning?
> May be interested in equipment to do this, if you have a solution.
> Suggestions are welcome.
The scanner that I used for my doigital photo class was made by Kodak,
but there are similar ones made by Nikon and others. This is a
scanner that has a plastic holder for either slides or negatives, and
each slide or negative has to be positioned by hand in the holder. If
you are serious about doing this, I would think that this type of
machine would be too slow and labor intensive. The machine itself
costs maybe 10 thousand dollars. And that was the low priced model;
there are drum scanners that are up to 25 thousand.
You can use some other method, but I don't think that the resolution
would be adequate. The Kodak can scan at 2000 PPI (pixels per inch).
Since the slide is about an inch, blowing it up to 11 inches would
bring the resolution down to about 200 to 300 PPI, which is about what
you need for decent resolution.
The reason I mention this is because the stuff you're doing will need
to be at least this good. With a flat bed scanner and transparency
adapter, I don't think you're going to get good enough resolution to
get a decent image. But you could try it. Go to a photo service
bureau and pay them to scan your microfiche in with a flat bed, and
see if it's good enough for your purposes. That way, if you're going
to try it, you don't have to shell out for the whole scanner. You may
also be able to get them to scan the microfiche in with the Kodak or
other machines, too.
You might be able to get them to put the fiches on CD-ROM for you,
too. Good luck.