Alpha Channel Coring
Shrinks the visible area of a layer by eating into its alpha (transparency) from each side independently. Useful for cleaning up the soft, semi-transparent fringe left behind by a chroma key, tightening the edge of a logo or watermark, removing thin coloured halos around keyed talent, and trimming back generated graphics so they sit cleaner on top of a busy background. Each side can be cored by a different amount.
Alpha Channel Coring - Settings
| Property | Description |
|---|---|
Left radius |
How far the alpha is eaten in from the left side. [min=0, max=100, default=0]. 0 leaves the left edge untouched. Higher values shrink the visible area further from the left, which is useful for trimming a soft fringe or halo on that side of a key. |
Top radius |
How far the alpha is eaten in from the top. [min=0, max=100, default=0]. 0 leaves the top edge untouched. Higher values shrink the visible area further from the top, which is useful for trimming a soft fringe or halo along the upper edge of a key. |
Right radius |
How far the alpha is eaten in from the right side. [min=0, max=100, default=0]. 0 leaves the right edge untouched. Higher values shrink the visible area further from the right, which is useful for trimming a soft fringe or halo on that side of a key. |
Bottom radius |
How far the alpha is eaten in from the bottom. [min=0, max=100, default=0]. 0 leaves the bottom edge untouched. Higher values shrink the visible area further from the bottom, which is useful for trimming a soft fringe or halo along the lower edge of a key. |
Reset |
Reset all settings to their defaults (Left, Top, Right and Bottom radius all 0). |
Inherits from: AbstractOperator, AbstractAudioMetering.