Vuescan, batch scanning problem

[Stefan Brencik]

Hi,

I have a problem with batch scanning with my Nikon LS4000
in Linux.

I follow user's guide, set batch scanning to list and set frames to 1-6.
Then I set rotation, cropping and color for each frame in the list.
Unfortunately, after scan, only rotation and cropping take the right
effect. Color values for all frames in list are set to values I set for
the last frame.

How can I set different values in color tab for each frame in the batch
list?

Thanks Stefan

[Jeff Grandy]

I have wanted to do this on some occasions but unfortunately
vuescan (at least 7.5.44) doesn't seem to have this capability.

The only workaround seems to be to scan each frame as
you adjust the colors. Unfortunately this means you need to
wait until the frame is finished processing before starting
the next one.

However I have often noticed that for a single roll of
film (negatives) the same settings usually work reasonably
well for most pictures (especially if the film was
exposed outdoors). (I have an HP S20).

[Bruce Graham]

[This followup was posted to comp.periphs.scanners and a copy was sent to
the cited author.]

In article <pan.2002.12.02.13...@cbox.cz>, ste...@cbox.cz
says...

I just read last week in the user guide that you can do this, jumped up
and down with excitement, then discovered the same results as Stefan.
Either a bug or more likely an ambiguous or overly hopeful user guide.
If Ed can implement this feature it would be very useful to me.
(Canon FS4000 SCSI windows)

[Bart van der Wolf]

"Bruce Graham" <jbgr...@ozemail.com.au> wrote in message
news:MPG.1857386a7...@news.ozemail.com.au...
SNIP

> > How can I set different values in color tab for each frame in the
batch
> > list?
> >
> > Thanks Stefan
> >
> I just read last week in the user guide that you can do this, jumped up
> and down with excitement, then discovered the same results as Stefan.
> Either a bug or more likely an ambiguous or overly hopeful user guide.
> If Ed can implement this feature it would be very useful to me.
> (Canon FS4000 SCSI windows)

I just wonder how you would have knowledge of the changes needed for each
image. In my opinion, scanning a film with similar subjects can be done
pretty well with either a locked exposure and image color setting, or with
an automatic Whitebalance setting.

A better workflow IMHO would be to scan Raw data files (you'll have to
scan them sooner or later anyway), and postprocess those. Reading the Raw
data files is MUCH quicker than scanning them, and it is possible to
individually color balance and save them one after the other as you
determine the best parameters. If the quantity of scans is large, you can
do batch processing on automatic or locked settings pretty well, and
perhaps redo the few that are not to your liking.

Bart

[Stefan Brencik]

On Tue, 03 Dec 2002 11:54:25 +0100, Bruce Graham wrote:

> I just read last week in the user guide that you can do this, jumped up
> and down with excitement, then discovered the same results as Stefan.
> Either a bug or more likely an ambiguous or overly hopeful user guide.
> If Ed can implement this feature it would be very useful to me. (Canon
> FS4000 SCSI windows)

Some time ago I scanned negatives with Minolta Scan Dual II and if I
remember it well it worked. But I'm not sure and don't remember vuescan
release of course.

Maybe I'll try to test this with various settings for negatives or slides.

[Stefan Brencik]

On Tue, 03 Dec 2002 03:24:55 +0100, Jeff Grandy wrote:

> The only workaround seems to be to scan each frame as you adjust the
> colors. Unfortunately this means you need to wait until the frame is
> finished processing before starting the next one.

That's the way I just do it. But not very comfortable.

> However I have often noticed that for a single roll of film (negatives)
> the same settings usually work reasonably well for most pictures
> (especially if the film was exposed outdoors). (I have an HP S20).

Sometimes it's usefull to be able to change it. Especially brightness.

[Bruce Graham]

[This followup was posted to comp.periphs.scanners and a copy was sent to
the cited author.]

In article <3decb4d6$0$11744$e4fe...@news.xs4all.nl>, bvd...@nospam.nl
says...

My only problem with raw scans is I find I often need to adjust the
exposure to avoid noise in the highlights (using negs). I suspect there
are three aspects to my problem.

1. I have a Canon FS4000 scanner which only has an OK noise performance
from what I read here (I have no other personal experience). It is also
a fairly slow scanner and I suspect Vuescan tries to make it as fast as
possible by calculating exposure for only a normal density range (not
allowing for very dense negs).

2. Frequent overexposure in parts of my shots. For example, I have been
shooting birds in flight in the desert where I tend to overexpose a bit
to keep some detail in the birds, but end up with a dense noisy sky.
Colour balance and exposure varies a lot frame to frame.

3. I possibly should choose different film (Fuji consumer 35mm and APS
mainly ISO 100 for the bright desert)

So for now, I often need to preview each frame a few times before final
scanning to select the best scanner exposure. Under these circumstances,
it would be nice to do a series of previews, then walk away while the
machine did the final scans.

I'd appreciate suggestions or criticism.

Bruce Graham