Convert rgbadjust settings to tweak?

[zettai]

Is it possible to convert the settings in rgbadjust to have the same effect in YUV space via tweak?

eg

rgbadjust(0.96,1.2,1.63,1)

If so, what math do you need to work it out?

[Guest]

Originally posted by zettai
Is it possible to convert the settings in rgbadjust to have the same effect in YUV space via tweak?

eg

rgbadjust(0.96,1.2,1.63,1)

If so, what math do you need to work it out? Why do you want this?

[zettai]

Because I have an old script that corrects the colour of something perfectly using rgbadjust... but I now want to use tweak to avoid colourspace conversions (going YV12 to RGB then back) and I just can't get the settings right with tweak... yet :)

[Guest]

I see. You ought to be able to do it given the HSL<->RGB conversion equations. But I don't have the time to work it out for you. :)