Dette filteret inverterer lysverdien (luminositeten) i det aktive laget eller utvalet. Kulør og metning vert normalt ikkje påverka, men det kan verta nokre små endringar på grunn av avrundingsfeil. Ønskjer du å invertere kulør og metning, bruker du Farge → Inverter.

Note that hue and saturation can be distorted quite a bit when applying twice this filter for colors with a high luminosity (for instance, HSV 102°,100%, 98%, a bright green, gives HSV 96°, 100%, 2% after a first application of the filter, and 96°, 100%, 98% after a second application). Thus, you should not expect to be able to apply this filter twice in a row and get back the image you started with.

This filter is found in the image window menu under Colors → Value Invert.