thanks for the tips! On Oct 11, 2012, at 7:35 PM, Andy Jones <[email protected]> wrote:
> To reduce colors into a "safe" gamut, you have to gamut map. In general, the > better solutions to gamut mapping all have to affect some of the colors that > are within the target gamut. So this is one explanation why automated tools > might provide unsatisfying results in certain cases (even if the tool is > already very well designed). > > So I agree that grading with feedback is not a bad way to go, and may > continue to be, even if better tools are built. There's probably still a > role for automated tools, but probably not as much when you still have a > time/opportunity to fix the problem with subjective grading. > > I'm not a video engineer, but I do recall seeing somewhere that illegal NTSC > values are not as "dangerous" as they used to be, due to the way content is > distributed now. But even if it's "safe" you still don't want colors > unexpectedly clipping out of gamut, as this will produce banding artifacts. > A tool to show values out of gamut with some form of "zebra stripe" might > actually be a pretty good way to deal with this. > > http://en.wikipedia.org/wiki/YIQ > > - Andy > > On Tue, Oct 9, 2012 at 4:50 PM, Diogo Girondi <[email protected]> wrote: >> Personally I never been too fond of those magic nodes to legalize color >> values, they never really delivered the best results in my opinion. At least >> in Flame, Smoke and Combustion they didn't. They had a tendency to mess up >> with things as whole which wasn't ideal in most cases. So what use to do was >> to color correct everything while looking at a Vectorscope. >> >> >> cheers, >> diogo >> >> >> On Tue, Oct 9, 2012 at 7:44 PM, Dan Rosen <[email protected]> wrote: >>> I'm actually looking for safe color values for NTSC and not action & title >>> safe. >>> >>> On Tue, Oct 9, 2012 at 2:29 PM, Diogo Girondi <[email protected]> >>> wrote: >>> > Here's the link to it >>> > http://www.nukepedia.com/gizmos/draw/dguides/ >>> > >>> > Cheers, >>> > Diogo >>> > >>> > On 09/10/2012, at 18:12, Dan Rosen <[email protected]> wrote: >>> > >>> > Any one have an equivalent to Shake's VideoSafe node? I'd like to make >>> > sure some images are safe for NTSC and there was a nifty node in Shake >>> > for that. Anyone have a gizmo or know of what node would do that in >>> > Nuke? >>> > >>> > thx >>> > Dan >>> > _______________________________________________ >>> > Nuke-users mailing list >>> > [email protected], http://forums.thefoundry.co.uk/ >>> > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> > >>> > >>> > _______________________________________________ >>> > Nuke-users mailing list >>> > [email protected], http://forums.thefoundry.co.uk/ >>> > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
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