E
Erik Krause
Hello,
anyone knows what
Improved color correction when "Input|Media" is "Slide"
does exactly mean?
anyone knows what
Improved color correction when "Input|Media" is "Slide"
does exactly mean?
T
ThomasH
Erik said:
Sometimes I am thinking: if it ain't broken, don't fix it.
I am still with 7.6.78. I moved to 8.n a few times and I
always hit some issues with the Gui... Now I am waiting
for a few releases to pass by! You guys find the bugs!
Thomas
N
nikita
Now I am waiting
A few releases? heh....you wait, babe.
Erik, it probably means that one scanner has a better colorcorrection
while it screws up life for the rest of the scannerpark supported.
Isn't that the way it always has been? Don't tell me that you don't
see any differences using your scanner!? Lucky you. Please tell us
what brand! ;o)
nikita
for a few releases to pass by! You guys find the bugs! >
A few releases? heh....you wait, babe.
Erik, it probably means that one scanner has a better colorcorrection
while it screws up life for the rest of the scannerpark supported.
Isn't that the way it always has been? Don't tell me that you don't
see any differences using your scanner!? Lucky you. Please tell us
what brand! ;o)
nikita
E
Ed Hamrick
nikita said:
No, it means that the slide film color correction matrix is now being
applied properly (it was being applied twice before). This results in
colors that are correct, along with the Kodachrome or Ektachrome
sensitometric curve.
It's easy to verify - do a scan with 8.0.7 one with 8.0.8 and
compare the colors - then hold the slide up to a light and
see which version produces colors that are more accurate.
Regards,
Ed Hamrick
E
Erik Krause
Ed Hamrick said:
Ok, that's what I wanted to know. It does not appply to generic slide
then...
Ed, I would very much like to see a small comment like the above one on
your web page any time there are changes where there is not sufficient
information in a single line.
N
nikita
No, it means that the slide film color correction >matrix is now
being
-------
I see.
Then those who scanned a few hundred slides with the faulty version
now can start over again....good for them to to know. If they've done
this scanning during their professional hours they lost time and money
on that bug. I assume that some of them will accept the resulted scans
as is and let their client have it as is without telling them anything
about it.
Actuallt this is a pure bugfix, not something that should be called
"improved" colorcorrection. Improved gives me an impression of
something else as a startingpoint.
I'm sorry for beeing a pain in the ass, Ed. But I do have a point and
intention with it from time to time.
I'll second Eriks request.
nikita
Ps. I haven't read the explanation in the Vuescan history for this
bug. If Ed was calling it something else than an improvement, I
apologize.
being
-------
I see.
Then those who scanned a few hundred slides with the faulty version
now can start over again....good for them to to know. If they've done
this scanning during their professional hours they lost time and money
on that bug. I assume that some of them will accept the resulted scans
as is and let their client have it as is without telling them anything
about it.
Actuallt this is a pure bugfix, not something that should be called
"improved" colorcorrection. Improved gives me an impression of
something else as a startingpoint.
I'm sorry for beeing a pain in the ass, Ed. But I do have a point and
intention with it from time to time.
I'll second Eriks request.
nikita
Ps. I haven't read the explanation in the Vuescan history for this
bug. If Ed was calling it something else than an improvement, I
apologize.
M
Mendel Leisk
So for some time, I've been hearing "scan as image, don't use slide
profiles". I think this was even the recommendation from Ed Hamrick
(excuse me if wrong on this).
My very limited experience with the Vuescan slide profiles was that
they produced poor results. Highlights seemed to have a strange lurid
yellow edge on my provia100 scans.
Thought, in light of ongoing Vuescan revisions (bug fixes?):
Save Vuescan raw files, and if you're going to invest time in manual
cleaning, clean them.
E
Erik Krause
Mendel Leisk said:
That is most likely because 'Media type: Slide' imperatively needs to
use advanced workflow. If you don't use advanced workflow, vuescan
tries to determine film base color from the slide itself. This fails -
contrary to negative where the image border is clear - for slides.
If there is no clear area (and this is only the case if you overexposed
the slide) vuescan treats the brightest area as 'film base', which is
wrong most of the time.
E
Ed Hamrick
Erik Krause said:
This is exactly right, and is why I always recommend people try
setting "Input|Media" to "Image" - there's no issue with film base
color this way.
Regards,
Ed Hamrick
E
Erik Krause
Ed Hamrick said:
An additional hint to advanced workflow would perhaps help to avoid
misunderstandings...