10.18.  Invert

"Invert" causes all colors in the active layer to be inverted in brightness, as though the image were converted into a negative. Dark areas turn to bright and conversely; hues are replaced by their complement (for more informations about colors see glossary at Color Model).

[Note] Note

Invert works on layers from RGB and Grayscale images, but if the image is Indexed, the menu entry will be insensitive.

10.18.1.  Activate Dialog

  • This command can be accessed from an image menubar as Layers->Color->Invert.