På Sat, 20 Aug 2011 01:02:02 +0200, skrev Edouard Chalaron <[email protected]>:
Hi Herman I just checked the output it says 16 bits not 8. Not sure what you mean by the debugging ... do you mean the RGBA float in Cinelerra is buggy ??
Yes. Clearly RGBA FLOAT is broken. RGB FLOAT (no alpha) can be used with OpenEXR files, using the Gamma effect to yank the brightness and contrast down into the displayable range.
How about changing the RGB output in the script for exr ?I understand Cinelerra is working fine with EXR
Yeah, apart from the need to aggressively adjust the whitepoint and the gamma (using Cinelerra's Gamma video effect) to get anything resembling a real picture.
As for the LUT this is what I want to achieve witha new plugin based on this script. Did you have a look at the new version ? negfix8 ?
Nope. I'm not fluent in ImageMagick at all, and I am quite new to pixel transformation math, too. And there is no instant gratification in it for me: I don't have any negative scans at hand to try this out on.
it can actually create a profile you can apply to a serie of frames. Unless I grab the flags from the EDL, create a profile for each of them,do a bash script based on frame numbers. But that would be outsidecinelerra and way more data to manage.
What is the aim? A high-quality grading tool, or a real-time preview with "almost correct" colours? As far as I can tell, and as far as I have been told, Cinelerra in its current state isn't quite up to high quality grading. So personally, I would go for a speedy and coarse adjustment effect, for working quickly on rough cuts.
Having it to work would be such a bonus .... gosh ..
It would shorten your workflow, for sure. :-) -- Herman Robak _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
