Good setting for "tweak.dll"

[Niño]

I'd like to improve the colour of my clips, i usually use #Tweak("hue","sat", "bright","cont"), trying to reduce saturation and contrast, increasing brightness, and I don't change "hue" if I modify saturation, but I'm still not satisfied.
Could anyone suggest me some good setting?
Thanks.

[lamer_de]

I guess it's almost impossible to give general recommodations on this subject. It completly depends on your source. Ususally, you don't need any color tweaking if your source is a DVD.

You could use the VDub Filter version for testing, as it has a preview so you can check quickly how your settings affect the image.

Good luck,
lamer_de

[LigH]

For the German doom9 mirror, I once wrote a report about my Backup of MIB. Because I always watch my movies on a PC monitor (I don't have any TV-Out), I use Gamma correction and color tweaks. In contrast to you, I'm increasing saturation and contrast instead of reducing them, because TV signals have also a limited color saturation value range.

Indeed, it depends on the sources which values to use: CG movies (Shrek, A Bugs Life etc.) already have mostly bright and powerful colors, here you won't need a Gamma value higher than 1.3; old and poorly digitised action or horror movies (e.g. Mortal Kombat) instead may require up to 1.5 to be able to spot anything in dark shady areas.

Similar hints can be given about the saturation: CG movies won't mneed much more than 1.15, very faint old movies (like Highlander) instead looked much better with saturation factors up to 1.25.

For contrast, I use a factor of 1.1 to clamp the brightness better to the maximum edges of the value range. This might be not the best idea - if someone proves that it is nonsense, I'll believe him... but in my case, I enjoy the look.

A last hint: Since AviSynth 2.05, you don't need the plugin DLL anymore, Tweak is now part of the core. Also a bug in BicubicResize was fixed, which could lead into flipped hue for extremely saturated colors.

[Niño]

I was talking about DVD source, where I've noticed that the codec (expecially 5.02, not Xvid or 3.11) sometimes kills the colour, giving a bad green/grey effect, expecially with temporalsmoother (I use c3d now) or other denoiser.
Thank you.
Bye.

[FuPP]

hem, just a stupid question (I've read a lot about this problem but never really found the answer I was Waiting for) :

I have a few DVD at home : when I open them using a .d2v project and mpeg2dec, they look the more often dark (I generally use tweak or levels or directly change parameters in the d2v file to correct this):

- 1/ does this phenomenon come from the source (and my standalone player dynamically corrects luminance and so on, as it does when amplifying the sound part, for instance)

- 2/ does it come from dvd2avi or mpeg2dec (a kind of 'bug'?)

I will bet on 1/ :)

if 1/ : Is There any chance to create a filter that automatically and dynamically correct contrast and luminance as my standalone player does ?

if 2/ : Can this bug be corrected ?


Regards,

FuPP