Need color balance filter help

[mlong68]

Hi All,

Can someone recommend a filter that can color balance this image?

I noticed that the white walls aren't white, and it looks like there is a shade of red in the image, similar to what I see in digitals photos. Also looks like it maybe a little over saturated.

Are there any filters available that are similar to photoshop's auto color, thats available for video?

I'd appreciate any feed back you can give me.

http://www.lwintegrationtest.com/filtersuggestions.jpg

Thanks.

Matt

[Pookie]

http://avisynth.org/ColorYUV

[DarkT]

Try Tweak:

Tweak(cont=1, sat=1.0,bright=0, hue=1)

Those are the defaults, I THINK... Check it out ;).

[AVIL]

Hi,

I agree with pookie. Try

coloryuv(gain_v=-5,gain_u=-5)

start with this values and change it until clip looks color balanced.

You can try also virtualdub plugin ACOBW.VDF:

loadvirtualdubplugin("D:\abc\virtualdub\plugins\ACOBW.VDF","acobw",0)

...

converttorgb32()
acobw(5,5,5,1,1,1,1,0,2)
converttoyv12()

or the colorspace original of your clip

good luck

[mlong68]

Hi,

I agree with pookie. Try



start with this values and change it until clip looks color balanced.

You can try also virtualdub plugin ACOBW.VDF:



or the colorspace original of your clip

good luck


Where is this filter located? I can't seem to find it on the web.

Thanks.

Matt

[Guest]

It's an internal Avisynth filter. Refer to the Avisynth docs.

You don't have to load a plugin to use it.

[Vern Dias]

Does anyone notice that the color balance is also off left to right? IE, the left side of the image has more red than the right.

This is a problem I have with a old reel of film. I am looking for a virtualdub or avisynth filter that will let me apply a graduated tint to the the frame. In this example, I would want to apply more green to the left side of the frame with a linear decrease in the green correction progressively across the frame towards the right.

I have searched, but haven't found anything that would do this.

Does anybody here know of anything that would perform this function?

Vern

[Vern Dias]

NM. Finally found something called HotSpot_RGB that does the job.

Vern

[AVIL]

Hi,

There is an avisynth filter called GraMaMa that makes gradient mask (as name implies). Used with mt_merge (from masktools filter) can serve to make uniform transition from a clip hard red tone corrected to other less corrected.

Found GraMaMa in:

http://forum.doom9.org/showthread.php?p=598958#post598958

Good luck