Posted: Mon, 19th Oct 2009, 2:09am
Post 1 of 3
I am new to CompositLab, I have a green screen video, and I have used the chroma key and spill suppression and it looks great EXCEPT for a few grainy areas of black pixels that show up at the bottom left of the video. I'm not sure how to "clean" these problem areas. I used CompositLab a year or so ago and I remember I read somewhere to turn the background red to spot these problem areas, but I don't remember what I did to fix these areas.
I've looked through the tutorials and forums but have not found this exact issue.
Any help would be appreciated,
Posted: Mon, 19th Oct 2009, 2:22am
Post 2 of 3
You can use a garbage matte to erase a defined area.
Check out the compositing video tutorials
, specifically the last one titled 'Garbage Mattes'.
Posted: Mon, 19th Oct 2009, 1:20pm
Post 3 of 3
Thank you very much, that did the job, I had to adjust the garbage mattes for certain frames as my subject shifted slightly as she was doing her presentation. The grainy areas were close to her shoulders. Just thought I would mention that in case anyone else had this issue.
Thanks again for the speedy response!