Cargar alfa¶
Description
This effect creates an alpha channel (transparency) based on a file (e.g. PNG with alpha, PGM with luma information).
Parameters
Parameter |
Value |
Description |
---|---|---|
Image or video resource |
File Selection |
Select the file (image or video) to be used as the mask |
Threshold |
Percentage |
Sets the threshold for making opaqueness and transparency. Values below the value are made opaque, values above transparent. |
Softness |
Float |
When using Threshold determines how soft to make the edge around the threshold. Similar to feathering. 0.0 means no softness (hard edge), 1.0 means very soft (default is 0.10). |
Invert |
Switch |
Invert the alpha channel |
Use Luma |
Switch |
Use the Luma information instead of the alpha channel |
Use Threshold |
Switch |
Use the Threshold value |
Notes
Es posible usar un archivo de imagen fija o uno de video, si se deseara obtener una máscara animada
Examples
Seleccionar el archivo que se desee utilizar como alfa
Si la imagen o video seleccionado no contuviera un canal alfa, Kdenlive mostrará este mensaje de error
En vez del canal alfa, será posible usar la información de luminancia del archivo
This is an example for how the Shape Alpha effect looks like when using a PGM
image file with Luma: