RasterFlow
Color

Clip Alpha

gegl:alpha-clip
Keep alpha values inside a specific range.
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Operation pads

This operation exposes the following data pads, defining how it receives, processes, and emits image data:

Input
Output

Operation properties

Clip low pixel values
gboolean
Clip low pixel values.
Default true
Low limit
gdouble
Pixels values lower than this limit will be set to it.
Default 0.00
Clip high pixel values
gboolean
Clip high pixel values.
Default true
High limit
gdouble
Pixels values higher than this limit will be set to it.
Default 1.00

Absolute

Makes each linear RGB component be the absolute of its value, fabs(input_value).

Brightness Contrast

Changes the light level and contrast. This operation operates in linear light, 'contrast' is a scale factor around 50% gray, and 'brightness' a constant offset to apply after contrast scaling.