>> What on earth is a 3X3 matrix?
>3 by 3 is the small matrix (or "kernal") around the pixel to be
filtered ... i.e., its nearest neighbors. Other common filter kernals are
5x5 (a pixel beyond nearest neighbor), and 7x7 ... and even larger.
That's definitely CG Programmer talk. As Spock would s
In a message dated 3/5/2001 12:34:39 PM EST, [EMAIL PROTECTED] writes:
> When the Long exposure pass was first discussed, you mentioned that
> certain scanners had different options for long exposure levels (like 2x,
> 3x, 4x, etc). However, Vuescan doesn't seem to give you access to setting
>
In a message dated 3/5/2001 3:42:26 PM EST, [EMAIL PROTECTED] writes:
> How does the program know how much fading there was,
> vs just a difference in what was in front of the camera lens?
It analyzes the colors of the film grains.
Regards,
Ed Hamrick
Very interesting, Ed. How does the program know how much fading there was,
vs just a difference in what was in front of the camera lens?
At 03:45 AM 03/05/2001 -0500, you wrote:
>In a message dated 3/4/2001 8:39:50 PM EST, [EMAIL PROTECTED] writes:
>
> > Is the scan in Vuescan's memory the same
In a message dated 3/5/2001 1:52:06 PM EST, [EMAIL PROTECTED] writes:
> > What on earth is a 3X3 matrix?
>
> 3 by 3 is the small matrix (or "kernal") around the pixel to be
> filtered ... i.e., its nearest neighbors. Other common filter kernals
> are 5x5 (a pixel beyond nearest neighbor),
IronWorks writes ...
> What on earth is a 3X3 matrix?
3 by 3 is the small matrix (or "kernal") around the pixel to be
filtered ... i.e., its nearest neighbors. Other common filter kernals
are 5x5 (a pixel beyond nearest neighbor), and 7x7 ... and even
larger.
shAf :o)
What on earth is a 3X3 matrix? Maybe someone on the list could point me to
a website description.
Maris
- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, March 05, 2001 2:45 AM
Subject: Re: filmscanners: Vuescan - A few technical questi
On Mon, 5 Mar 2001 [EMAIL PROTECTED] wrote:
> Increasing the exposure time will saturate the CCD in the bright
> parts. Some (most?) CCD's will bleed light from overexposed
> pixels into nearby pixels, which messes up dark areas that are
> near bright areas.
Ed,
When the Long exposure pass was
At 3:45 AM -0500 3/5/01, [EMAIL PROTECTED] wrote:
>Increasing the exposure time will saturate the CCD in the bright
>parts. Some (most?) CCD's will bleed light from overexposed
>pixels into nearby pixels, which messes up dark areas that are
>near bright areas.
>
>This is the reason that I resiste
nsert
the media or something to that effect. No great rush.
Regards Chris.
- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, March 05, 2001 10:30 AM
Subject: Re: filmscanners: Vuescan - A few technical questions
> In a message dated 3/3
In a message dated 3/3/2001 6:35:33 PM EST, [EMAIL PROTECTED] writes:
> 1. In the Color balance tab, what is the difference between "Neutral" and
> "Auto Levels?"
Neutral doesn't change the ratio of red to green to blue. Auto levels
uses the brightest point to determine the ratio.
> 2. Als
In a message dated 3/4/2001 12:42:54 PM EST, [EMAIL PROTECTED] writes:
> After I saw the mis-registration for LEP, I
> scanned again at 16x MP only. I couldn't see where LEP improved over
> 16x MP.
If you have a Nikon LS-2000, the 16x multi-pass scanning will
probably produce better results.
In a message dated 3/4/2001 8:39:50 PM EST, [EMAIL PROTECTED] writes:
> Is the scan in Vuescan's memory the same as the "raw scan"?
Yes.
> And do any of the settings on the Color Tab or the Media tab affect the
scan
> in memory and/or the raw scan?
No.
> Finally, if you know (or if it's n
file and maybe 'reverse engineer' the Restore Color function.
Maris
- Original Message -
From: "shAf" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 04, 2001 9:32 PM
Subject: Re: filmscanners: Vuescan - A few technical questions
shAf (me) writes ...
> IronWorks writes ...
>
> > ...
> >
> > Finally, ... I scanned a Q-60 without [restore color] and the
> > colors were off - Blue was about 10 points too
> > low. With the Restore Color option checked the result was
> > fairly accurate. ...
>
> Hmmm ... interesting ...
IronWorks writes ...
> ... I have some new questions:
>
> Is the scan in Vuescan's memory the same as the "raw scan"?
Yes ... I have come to respect VS's "raw scan" ... scan it once
... save if you want to archive ... or 'scan memory' with any variety
of "crop" settings until the cropped TI
lt;[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 04, 2001 11:38 AM
Subject: Re: filmscanners: Vuescan - A few technical questions
| IronWorks writes ...
|
| > I never thought to try it. [long exposure pass] How does it benefit
| the scan?
| >
| > I had assum
>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 04, 2001 12:15 PM
Subject: Re: filmscanners: Vuescan - A few technical questions
| I assumed that LEP is one pass at a slower-than-normal speed. If so, it
| shouldnl't be subject to mis-registration that MP can cause on some
scanners
|
Joel writes...
> I assumed that LEP is one pass at a slower-than-normal speed. If
so, it
> shouldnl't be subject to mis-registration that MP can cause on some
scanners
> (SS4000).
> ...
For a Nikon LS-2000, a 16x MP is a single pass operation ...
better described, it "multi-samples" rather
I assumed that LEP is one pass at a slower-than-normal speed. If so, it
shouldnl't be subject to mis-registration that MP can cause on some scanners
(SS4000).
--Joel Nisson
- Original Message -
From: "shAf" <[EMAIL PROTECTED]>
. After I saw the mis-registration for LEP, I scanned aga
IronWorks writes ...
> I never thought to try it. [long exposure pass] How does it benefit
the scan?
>
> I had assumed that the normal pass would gather sufficient
information,
> especially when it passes multiple times picking up missed or bad
data and
> then averaging them out.
VS's "long
t; <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 04, 2001 6:15 AM
Subject: Re: filmscanners: Vuescan - A few technical questions
| I'm using a SS4000 which definitely suffers from misalignment on long
| passes.
|
| Why do you never use "long pass?"
|
|
aris
>
> - Original Message -
> From: "shAf" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, March 03, 2001 8:59 PM
> Subject: Re: filmscanners: Vuescan - A few technical questions
>
>
> | Joel writes ...
>
> [snipped]
>
"shAf" <[EMAIL PROTECTED]> wrote:
> I realized for my LS-2000 Coolscan, the 2nd pass would not
> properly register with the 1st ... bummer!! ...
Huh? How come, Michael?? I've *never* had registration problems
with my LS30. :-7
Rob
OTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, March 03, 2001 8:59 PM
Subject: Re: filmscanners: Vuescan - A few technical questions
| Joel writes ...
[snipped]
| > 3. When should Options/Long scan not be used. I assume it is
| useful for
| > bringing out shadow detail, but it
Joel writes ...
> For Ed Hamrick (most likely):
I'm going to throw my own observations in here and hope Ed
addresses them as well.
> ...
> 1. In the Color balance tab, what is the difference between
"Neutral" and
> "Auto Levels?"
If you use auto levels, and after the scan is done (you
For Ed Hamrick (most likely):
I just purchased Vuescan and have a few technical questions:
1. In the Color balance tab, what is the difference between "Neutral" and
"Auto Levels?"
2. Also in Color balance, does "White balance" assume that the lightest
object in the image is white? Can it be
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