Edge Extend
Brief Description
Extend the edges of a matte, leaving RGB channels intact. If the input matte comes from a keyer, the alpha channel of the matte should be first eroded by a small amount to remove pixels containing mixed foreground/background colors. If not, these mixed colors may be extended instead of the pure foreground colors. The filling process works by iteratively blurring the image, and blending the non-blurred image over the blurred-image to get to the next iteration. The blur size at each iteration is linearly increasing.
Controls
| Parameter / Script Name | Type | Default | Function |
|---|---|---|---|
Enabled / enabled | Boolean | On | |
Red / process_red | Boolean | On | Enable the red channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Green / process_green | Boolean | On | Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Blue / process_blue | Boolean | On | Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Alpha / process_alpha | Boolean | On | Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Size / size | Float 2D | 0, 0 | Size of the largest blur used to extend the edge |
Slices / slices | Float | 5 | Number of blur filter steps to apply |
Bounding Box / rod_mode | Choice | Expand | - Expand - Crop to format - Same as input |
Filter / filter | Choice | Gaussian | - Gaussian - Box - Triangle - Quadratic |
Mask / mask | Image | - | |
Mix / mix_with_source | Float | 1 | Dissolves between the original image at 0 and the image with the effect applied at 1 |