2014-12-07 19:52 GMT+01:00 Bernhard <[email protected]>:
>
> This afternoon I had been fiddling around with a base curve for my color
> negatives:
> In the past I shot an IT8 Target by Wolf Faust on my favourite color
> negative films and can use this as a reference since darktable gives Lab
> with the color picker and Wolf gives Lab in his reference file for the gray
> steps at the lower end of the target also. But it takes some time to work
> out. As of now it looks something like the attached file for a Kodak Portra
> 160VC.
> I'm going to scan a test film of real pictures and will see how it works
> out.
> My only concern is file size - around 180MB per file out of Vuescan in RAW
> mode with IR channel included - thus 64bit/Pixel.
>
>
I use OpenEXR with PIZ compression (Wavelet / Huffman), which effectively
compresses grainy images, as my storage format. That will cut the
filesize in half and preserv the depth. This conversion is done on the raw
TIFF before any processing. I have also added EXR support to darktable long
time ago..
/Henrik
------------------------------------------------------------------------------
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=164703151&iu=/4140/ostg.clktrk
_______________________________________________
Darktable-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/darktable-users
