[sane-devel] Epson V500 Gray negative scan problem

[Bill Phillips]

I suspect that the software is expecting the typical orange mask found on
color negative film. This would normally be corrected for by injecting a
hefty dose of blue. When the negative (with extra blue) is converted to
positive, the blue turns orange.

I have this scanner, but haven't yet scanned b/w negatives with it. I
wonder if the problems you are seeing could have anything to do with ICE.
Though this seems most unlikely, since ICE is supposed to be shut off when
scanning b/w ...


Just throwing this out there ...


b.



On Tue, Apr 24, 2012 at 19:43, Olaf Meeuwissen <olaf.meeuwissen at avasys.jp>wrote:

> Drasko DRASKOVIC <drasko.draskovic at gmail.com> writes:
>
> > [snip]
> >
> >>> Can this be used :
> >>> http://www.xsane.org/doc/sane-xsane-setup-enhancement-doc.html
> >>> or these setting should be used only for lineart (i.e. commic scans)
> >>> and not for film negative scans ?
> >>
> >> That would give you a black and white (without any gray) image.  I don't
> >> think that's what you're after.
> >
> > Yes, I supposed that, but I was not really sure. As I see, these
> > settings are more for comic strip scan, for example. I was just
> > searching setting for negative scan, to see if I can improve scan
> > quality.
> >
> > However, here is what I discovered yesterday evening during few hours
> > of experimentation :
> >
> > 1) Scanning film negatives in Gray gives bad quality (like bad
> > resolution/small bit depth). Looks bad in the Preview and in the Scan.
> > 2) Turning on "Media definition"
> > (http://www.xsane.org/doc/sane-xsane-medium-definition-doc.html) to
> > change the setting give orange-reddish preview. Why? Why not just
> > gray?
>
> I'd guess that it scans the negatives in color and just displays the
> image data obtained.
>
> As for all your other questions, I know much too little about XSane to
> answer so I'll leave that to more knowledgeable folks on the list.
>
> Hope this helps,
> --
> Olaf Meeuwissen, LPIC-2           FLOSS Engineer -- AVASYS CORPORATION
> FSF Associate Member #1962               Help support software freedom
>                 http://www.fsf.org/jf?referrer=1962
>
> --
> sane-devel mailing list: sane-devel at lists.alioth.debian.org
> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel
> Unsubscribe: Send mail with subject "unsubscribe your_password"
>             to sane-devel-request at lists.alioth.debian.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20120424/ada18591/attachment.html>