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black and white?

Posted: Mon, 5th Apr 2010, 9:41pm

Post 1 of 3

rileyy

Force: 400 | Joined: 4th Mar 2010 | Posts: 11

CompositeLab Pro User

Gold Member

how do you do the black & white effect except something is colored,
like everything is black and white except my shirt.
Posted: Mon, 5th Apr 2010, 10:13pm

Post 2 of 3

Axeman

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

SuperUser

Add a grade object, Desaturate everything to make it black and white.

If you are really lucky, you'll be able to use a key filter to autoselect the color of the object. If so, then you can just add another layer of the footage above the grade object, and remove everything but the colored object using the key.

If that doesn't work, then you get to rotoscope a mask around the object for many many frames to isolate it, so the grade object doesn't affect it. Add a mask to the grade object to isolate the shirt, or whatever object you want to retain its color, and animate the mask to match the shape of the object on each frame. Depending on the specific object and how it is moving, you may be able to skip frames between the keyframes and still get the mask to track decently.
Posted: Tue, 6th Apr 2010, 11:05pm

Post 3 of 3

Evman

Force: 4382 | Joined: 25th Jan 2004 | Posts: 3609

VisionLab User VideoWrap User FXhome Movie Maker MacOS User

Gold Member

http://fxhome.com/forums/viewtopic.php?p=286725#286725

This is a tutorial I made a while ago to teach just this very effect.

The FXHome programs have evolved since then, but the concept is basically the same.