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Added Layers Cause Deterioration of Picture Quality

Posted: Wed, 25th Nov 2009, 10:42pm

Post 1 of 3


Force: 945 | Joined: 28th Apr 2009 | Posts: 133

CompositeLab Pro User EffectsLab Pro User FXhome Movie Maker

Gold Member

I noticed when I start compositing a scene in the video, the final picture quality has deteriorated some.
Ex: I start with sharp images ( beach, people, and sky).
The day was sunny- the sky, deep blue.
PROBLEM: Earlier shots were in cloudy conditions.
SOLUTION: Apply "spaghetti western"- shut off noise- and mask off people and land, so sky is white.
DIFFICULTY: When final render comes out- masked off areas are bleached looking and spotty. People have washed out-white faces with blotches of red.
ONE OTHER FACTOR: Some shots have added smoke effect?

Is there something I can do to improve quality of masked areas without losing the white sky effect?
Posted: Wed, 25th Nov 2009, 10:49pm

Post 2 of 3

Fxhome Dude

Force: 996 | Joined: 1st Jun 2009 | Posts: 927

CompositeLab Pro User FXpreset Maker FXhome Movie Maker Windows User

Gold Member

Try checking your compression setting and codec. Mess with those first. That is weird though.
Posted: Wed, 25th Nov 2009, 11:32pm

Post 3 of 3


Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User


instead of applying the mask and grading directly to the clip, try adding a Grade Object and applying the mask and grading to it.

That way you can use the grade object to control the sky colors, and you can apply other grading filters to the original clip to adjust the colors of the rest of the scene, if necessary.