Thread: Chroma keyers
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Old 07-07-2015, 02:17 AM   #3
createmedia
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Join Date: May 2007
Location: Four Marks, Alton, UK
Posts: 1,260
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Ok if I take your two tiffs I can do better with the Edius key than you have, and of course the hair is worst case as the ends will be hidden by the body in practice.

Edius key settings

Cancel colour
Range 27
Power 50

Y=127
U=102
V=83

Chroma
Base=189
Range 25

Luma

Base 76
Range 64

Soft Edge checked

Auto tracking enable
skip Line checked
skip frame not checked.

The green screen is not evenly lit in the small head shot and to do best for the hair the key fails on the background, so in the Edius keyer a compromise would have to be reached between hair and background key although you can always add a mask in the Edius keyer.

Interesting that the PNG create still with the Edius keyer creates a black background and using the Robus key it creates a white one however if I create a background clip it saves a still correctly.


The Edius key is I would describe as more large chunky areas and Robus key is better at fine detail.

There are 4 png files attached

0000 and 0004 are using the Edius Key

0001 and 0002 are using Robus Key

Robus key will play in Real Time in system 4 in my signature which it didn't before I got the GTX980Ti GPU.
Attached Images
File Type: jpg Still0707_00000.jpg (63.7 KB, 16 views)
File Type: jpg Still0707_00001.jpg (61.7 KB, 15 views)
File Type: jpg Still0707_00002.jpg (67.4 KB, 13 views)
File Type: jpg Still0707_00004.jpg (59.2 KB, 15 views)
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Last edited by createmedia; 07-07-2015 at 02:24 AM.
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