Chroma Key
I've never used OpenCV before... Would it be possible to code a "perfect" chroma key (green screen) application with it?
- At the basic level I need to set the alpha channel on all the pixels that match a particular RGB value (i.e. 51-255-0 aka green) to be transparent.
- Set a range for other colors that are close to green (but not EXACTLY 51-255-0) to also be transparent.
- Set pixels to be "semi-transparent" - So, remove the green out of them, but not the brown (for example). This is needed for the edge of the subject, mainly hair. Or semi-transparent objects such as glass.
Here is what I'm trying to achieve:
- Before: http://www.ultimatte-software.com/images/close-shot-blue-screen.jpg
- After: http://www.ultimatte-software.com/images/close-shot-composite-ultimatte.jpg
Thanks!