Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: Chroma Key Problems....

  1. #1

    Default Chroma Key Problems....

    Hi guys,

    I was working in Premiere Pro, using Chroma Key.
    This is how the video turned out:

    http://216.69.182.50/baluk/vids/gs-fin.wmv

    Now, I know that some of the crappiness is done by not good shadowing, but how do I fix or help the pixlelated edges at the end of the sheet, and around my foot?

    Is there a tool out there, that would fix it, or is it simply a problem with which I would need to resolve when actually recording?

    Thanks.

    Mark B.
    http://balukmagic.com
    taking impossibility to a whole new level

  2. #2
    Join Date
    Nov 2003
    Location
    Kent
    Posts
    11,526
    Blog Entries
    24

    Default

    You really need to get a crisp uniform colour. If I'm right, your green screen was actually placed on the floor - making it almost impossible to light evenly. You're replacing 'one' colour, so you need to get as close to one colour as possible.

  3. #3

    Default

    Quote Originally Posted by Marc Peters
    You really need to get a crisp uniform colour. If I'm right, your green screen was actually placed on the floor - making it almost impossible to light evenly. You're replacing 'one' colour, so you need to get as close to one colour as possible.
    So, if I get better lighting, that should go away?
    http://balukmagic.com
    taking impossibility to a whole new level

  4. #4

    Default

    I had the same problem, I was using a bright purple sheet on a wall...good lighting not much shadows but was get uneven lighting.

  5. #5

    Default

    Quote Originally Posted by joeycory
    I had the same problem, I was using a bright purple sheet on a wall...good lighting not much shadows but was get uneven lighting.
    So, if I had like evenly distrubited light, the roughness will go away?
    http://balukmagic.com
    taking impossibility to a whole new level

  6. #6
    Join Date
    Aug 2005
    Location
    Western Europe
    Posts
    3,409

    Default

    Hi Baluk

    I've heard of people using a light meter (can't remember which type - it might be a spot then maybe someone else can remember) to check nine points on the cloth you are using. You are looking for consistent readings at the top left, top middle, top right and then centre left, centre centre and centre right and the same along the bottom. I know it might sound a bit excessive but if it gets rid of your problems so you don't have to spend hours in post production trying to get rid of artifacts or shadows then it's worth it. You could also use the clone and eraser tools in After Effects if you have access to it.

  7. #7

    Default

    Thanks for the tip Nikosony, I will look for that.

    At the moment, I only have access to Premiere, can that do it?
    http://balukmagic.com
    taking impossibility to a whole new level

  8. #8

    Default

    There is a product called Chromonator available from http://fxhome.com/chromanator/

    I've not tried it but it claims to solve the crappy sheet syndrome. You could try the demo and see if it does the job. If it's anything like EffectLabDV for results it should be a gem.

  9. #9

    Default

    Thank you very much, I'll download it now.
    http://balukmagic.com
    taking impossibility to a whole new level

  10. #10

    Default

    Wow!

    Look at the results!

    http://balukmagic.com
    taking impossibility to a whole new level

Page 1 of 2 12 LastLast

Similar Threads

  1. Chroma Keyer
    By TWIY in forum Sony Vegas video editing apps
    Replies: 2
    Last Post: 05-11-2008, 10:35 AM
  2. Chroma Key Backdrops
    By Martin Chambers in forum Technology advice and tips
    Replies: 4
    Last Post: 02-18-2007, 01:28 PM
  3. Chroma Key question
    By bishman82 in forum Sony Vegas video editing apps
    Replies: 3
    Last Post: 06-23-2006, 10:31 AM
  4. Chroma keying.
    By Mark W in forum Sony Vegas video editing apps
    Replies: 1
    Last Post: 01-20-2006, 10:39 PM
  5. Query about FCP chroma key?
    By StuFowler in forum General video editing software help and advice
    Replies: 0
    Last Post: 07-22-2005, 04:43 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •