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Removing Blue Colour Cast
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Argonaut
Posted: Aug 27 2009, 03:41 PM


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Member No.: 23241
Joined: 15-March 08



I take underwater video clips .. these typically have a severe Blue Colour cast (due to water filterring out the Red)

I asked here how to remove it (used to doing this in photoshop on stills)
Reply was to use Gradation Curves Filter
I have downloaded that and dropped the vdf file into Pulgins folder, and also put the 'amp' files in same folder.

I'm just having difficulties in how to use it.

I open a video clip ... go to video/filters
select Graduation Curves
It opens the control panel ..... at this point I may be going wrong.

I then import "Red+amp file.

What do I do then, do I select Red ch from RGB ?

When I select 'preview' it does not show any change ?

I have also tried the "blue-" amp file as well .... same thing.

... also on the authors tutorial site http://members.chello.at/nagiller/vdub/tut...l/tutorial.html
It shows that when you use thge Blue- amp file a curve that does not look like the curve I get when I import teh amp file ?

Guess I'm missing a step.


Anybody know what I should do .... or is there an alternative filter I should be using ?
 
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