some things I found to be working so far:
Base of all this is a RAW image from vuescan, which for the time beeing
should be TIF (http://sourceforge.net/p/darktable/mailman/message/33067885/)
Then I apply:
1. Invert - by using the color picker and select a rectangular of the
non exposed film between two frames
2. crop and rotate
3. white balance - manual by selecting a bright neutral area in one of
the images (for example the clock in the following image)
http://up.picr.de/20218185av.jpg
4. base curve - I created a "quick and dirty" film base curve (which
seems to be inverse to the ones for the digital cameras) but when time
allows I will do it more exactly by using a IT8 color target and
metering out different shades of grey.
5. exposure - I select "auto exposure" to start with and after - if
necessary - minor manual histogramm corrections.
These steps may be batch applied to the other photos - this is an example
http://up.picr.de/20218190zd.jpg
and in my eyes this works even if the situation is totally different.
As I use a nikon scanner my next tests will be to adjust "analog gain"
of the three color channels right in Vuescan so white balance will not
have to do the heavy corrections necessary til now.
Search for "super advanced work flow Erik Krause" ...
regards
Bernhard
Bernhard schrieb am 24.11.2014 um 15:32:
Hi Steve,
inspired by your question I am trying to optimize my workflow to use
Vuescan to produce the RAW files and do everything else in darktable.
I like to have "everything in one place", in this case: my complete
archive.
And I like non-destructive workflow.
But I fear this will take some more time until I'm ready to post
results. I'll let you know.
Bernhard
Steven Fosdick schrieb am 24.11.2014 um 00:16:
Bernhard,
When working in darktable I was looking to get the colours mostly
right by working on one image and pasting the history stack to the
other images but what worked on one image was wrong on others.
Thanks,
Steve.
------------------------------------------------------------------------------
Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
from Actuate! Instantly Supercharge Your Business Reports and Dashboards
with Interactivity, Sharing, Native Excel Exports, App Integration & more
Get technology previously reserved for billion-dollar corporations, FREE
http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk
_______________________________________________
Darktable-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/darktable-users
