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Member
 
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Last Login: Saturday, August 07, 2010 6:05 AM
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| I've seen some shots like a RED flower or a colourfull flag in a B/W scene. Could anyone explain How to do this? What may be the logic or theory behind this shot? I don't think they are colouring all those thousands of frames!!
Jerlin
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Veteran
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Jerlin,
What you're most likely seeing there is a process most similar to chroma keying or 'greenscreening'. The highlighted object is a very distinct color in the shot. In post-processing, the technicians can isolate that color range and create a mask. Everything outside that mask is desaturated (made black and white) and whatever is inside it is colored. Hope this makes sense.
--Tom
THOMAS SHANNON
SENIOR DESIGN VISUALIZATION SPECIALIST
PB Project Visualization
http://www.pbprojectviz.com/
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Member
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| In that case the scene must be recorded with only that particular object with particular color. isn't it? ie, in a garden or roses, you can not isolate only one flower out of that! Is this function available in Premier or such programs?
Jerlin
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Wookie Wrangler
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Sure you can, you just need to make the appropriate mask. 
Autodesk Combustion can do this.
__________________________________
Christopher J. Leone
Parsons Brinckerhoff
75 Arlington Street, Suite 9
Boston, Massachusetts 02116
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Sure you can! Just paint the rose you want in color a color that isn't in the garden. Neon orange is pretty unnatural. Then, you can re-color the object in post. You can also do an animated mask around the object like Chris said, then you only have to have a unique color within that mask.
Most video compositing/effects packages have these abilities (combustion, after effects, NOT premiere)
THOMAS SHANNON
SENIOR DESIGN VISUALIZATION SPECIALIST
PB Project Visualization
http://www.pbprojectviz.com/
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Member
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Last Login: Saturday, August 07, 2010 6:05 AM
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| Great answers! Thanks a lot. ....coloring the flower...cool idea! (why my chip is not thinking that way! ) ....and this inspired me to try some special effects programs like after effects. See you.
Jerlin
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