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April 12th, 2005, 02:46 AM
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#1 |
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Regular Crew
Join Date: Jan 2005
Posts: 126
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FX-1 Chroma Key GREAT RESULTS
Hey Everyone,
I have some very good news. Let me first just say I have no experience with chroma keying. I've never done it before in my life. I read a webpage about HDV keying that was put up by Fredrick (Lumiere HD). He basically says it sucks and it may just be worse than DV. This inspired me to try it out for myself. Here was my process 1) I headed out to office depot and bought a bright green poster board. 2) Hung it off a mic stand and lit with 2 1k's from home depot, 1 300watt for hair light. 3) Filmed myself wiggling around....:) 4) Brought the footage in and converted to 10bit uncompressed. 5) Got an image from the internet of a highway by the beach. 6) Pulled the key using primatte. (Never used before in my life) For my test I chose to show a moving frame because I've heard that the interlacing makes it harder on the keyer...a better test. Here are my results: Starting Image: http://www.expertmagic.com/dvinfo/keytests/raw.jpg Key: http://www.expertmagic.com/dvinfo/keytests/alpha.jpg Final Comp: http://www.expertmagic.com/dvinfo/keytests/comp.jpg Video Crop of key 720x480(not scaled but CROPPED, still full res): http://www.expertmagic.com/dvinfo/keytests/keyvideo.mov Now is it just me or is that a great key? Again I've never done this before but I couldn't be happier with the results. Final Note: This isn't even using a smoothing filter such as Gnicer, just the raw 4:2:0 Let me know what you all think. Thanks, Eric James |
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April 12th, 2005, 03:09 AM
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#2 |
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Regular Crew
Join Date: Jan 2005
Location: The Netherlands
Posts: 50
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Really well done! Great key indeed!
I have to try this also. What program did you use? |
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April 12th, 2005, 09:19 AM
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#3 |
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Major Player
Join Date: Oct 2003
Location: Richardson, TX
Posts: 842
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Good gravey!
Whatever you did, you did it right! (Bryan plans a trip to Office Depot for green poster board...) |
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April 12th, 2005, 01:49 PM
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#4 |
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Major Player
Join Date: Apr 2005
Location: New Orleans, LA
Posts: 218
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You're hired... looks good to me......
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April 12th, 2005, 02:11 PM
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#5 |
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Trustee
Join Date: May 2002
Location: Clermont, FL
Posts: 1,520
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In order to find the best color to key, I suggest that you take your camera into the fabric store and hardware store and shoot a bunch of material. Take it home and see which keys out the easiest and buy that.
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April 12th, 2005, 02:36 PM
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#6 |
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Major Player
Join Date: Mar 2005
Location: Brighton, England
Posts: 225
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That's great news - I was worried about having to hire a 750WS every time i needed to key... Perhaps that's not going to be the case!
BTW, great work for a first key - congratulations!! |
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April 13th, 2005, 02:09 AM
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#7 |
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Regular Crew
Join Date: Jan 2005
Posts: 126
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Hey Guys,
Thanks for the kind words. I think the secret is in the primatte keyer. MORE NEWS: I ordered a 9x20 chroma cloth so in the next week or so I'll be putting my findings to the real test. Anyone have any ideas for what to shoot? Sci-fi? Action scene? I would love any ideas. Thanks, Eric James |
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April 14th, 2005, 09:14 AM
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#8 |
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Regular Crew
Join Date: Jan 2003
Location: Alabama
Posts: 165
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Hey guys. Here are a couple of examples I tried with FX-1 footage. You can get awesome results by downrezzing to SD and then keying....
http://img.photobucket.com/albums/v5...reencomp01.jpg http://img.photobucket.com/albums/v5...reencomp02.jpg |
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April 14th, 2005, 11:08 AM
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#9 |
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Major Player
Join Date: Nov 2004
Location: Canada
Posts: 547
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Holycrap I'm on Couruscant!
Nice work there Daniel. -Steve |
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April 14th, 2005, 12:58 PM
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#10 |
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Regular Crew
Join Date: Jan 2005
Posts: 126
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Gotta love this stuff!
Great keys Daniel. -Eric |
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April 14th, 2005, 01:06 PM
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#11 |
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Major Player
Join Date: Oct 2003
Location: Richardson, TX
Posts: 842
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Daniel,
What did you use to key? |
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April 14th, 2005, 01:35 PM
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#12 |
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Major Player
Join Date: Dec 2004
Location: North Alabama
Posts: 242
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<<<-- Originally posted by Eric James : Hey Guys,
Thanks for the kind words. I think the secret is in the primatte keyer.-->> First off that looks incredible! Secondly, I have no experience at all keying... What is primatte and what exactly does it do? Thanks alot!
__________________
Brandon Greenlee |
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April 14th, 2005, 01:50 PM
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#13 |
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Regular Crew
Join Date: Jan 2003
Location: Alabama
Posts: 165
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Thanks for the responce guys. I'm using Primatte for keying. I've had LOTS of practice keying because I am studying to be a feature film compositor in college.
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April 14th, 2005, 01:54 PM
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#14 |
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Major Player
Join Date: Oct 2003
Location: Richardson, TX
Posts: 842
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I need someone to get great keying results with something that doesn't cost $500.
:p |
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April 14th, 2005, 02:07 PM
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#15 |
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Major Player
Join Date: May 2004
Location: Fairfax, VA
Posts: 356
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how did you do that, and what program did you use?
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