RasterFlow
Color

Extract Component

gegl:component-extract
Extract a color model component.

Operation pads

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

Input
Output

Operation properties

Component
dictionary
Component to extract.
Default RGB Red
Possible values RGB Red • RGB Green • RGB Blue • Hue • HSV Saturation • HSV Value • HSL Saturation • HSL Lightness • CMYK Cyan • CMYK Magenta • CMYK Yellow • CMYK Key • Y'CbCr Y' • Y'CbCr Cb • Y'CbCr Cr • LAB L • LAB A • LAB B • LCH C(ab) • LCH H(ab) • Alpha
Invert component
gboolean
Invert the extracted component.
Default false
Linear output
gboolean
Use linear output instead of gamma corrected.
Default false

Color warp

Warps the colors of an image between colors with weighted distortion factors, color pairs which are black to black get ignored when constructing the mapping.

Contrast Curve

Adjusts the contrast of a grayscale image with a curve specifying contrast for intensity.