Alpha, Mask and Keying¶
The Alpha, Mask and Keying video effects category provides effects and filters to work with the alpha channel of source files or create masks and cut-outs if needed. It forms the prerequisite for alpha compositing[1] or alpha blending or what is more commonly referred to as Chroma Keying. At the end, the results are used to combine one image or video with a background to create the appearance of varying degrees of transparency.
The following effects and filters are available:
- Alpha Gradient
- Alpha Operations
- Alpha Shapes
- Alpha Shapes (Mask)
- Alpha Strobing
- Bluescreen0r
- Chroma Key: Basic
- Chroma Key: Advanced
- Despill
- Key Spill Mop Up
- Lumakey
- Mask Apply
- Motion Tracker
- Obscure
- Premultiply or Unpremultiply
- Rectangular Alpha Mask
- Rotoscoping
- Rotoscoping (Mask)
- Secondary Color Correction Area Selection (Mask)
- Shape Alpha
- Spill Suppress
- Spot Remover
- Transparency