This component is obsolete and its use in filters is not recommended. Use the recent version of the component.
The Set Alpha component replaces the alpha channel of the Source image or color with the new alpha channel. The original alpha channel is discarded. This is a map component, it can be located in the Channels category on the Components Bar.
Source: Map Input
Provides the source image or color whose alpha channel will be modified.
New Alpha: Map Input
Sets the new value of the alpha channel in the range of 0 to 255. Low alpha channel values lead to high transparency, while high values lead to low transparency. Since New Alpha is a map input, its value can be controlled separately for different image areas by connecting a map component. In this case, the output brightness of the map component defines the alpha channel value: black areas correspond to value of 0, white areas to 255, and the alpha channel values in-between are represented by intermediate brightness levels.
Inverts the alpha channel value.
