This command allows you to extract one specific color component from the current layer. This will be represented as a grayscale layer. It is similar to Decompose, except that it extracts only one component and the effect is performed on the current layer instead of creating a new image.
« Presets » are a common feature for several Colors commands. You can find its description in Section 8.1.1, « Fonctions communes aux couleurs ».
Composant à extraire. La valeur par défaut est le Rouge : tous les pixels ayant ce composants seront extraits pour créer des pixels gris : la valeur du pixel gris est celle du composant choisi (un pixel 153;70,17 donnera un pixel gris 153;153;153).
Invert all pixel values of the extracted component.
Use linear output instead of gamma corrected.
These are common features described in Section 8.1.1, « Fonctions communes aux couleurs ».