Working with the Devignette Controls

You use the Devignette adjustment controls to correct a vignette that was applied to an image as it was shot. The term vignette describes an image whose brightness fades to its periphery from its center. Vignettes are usually caused by poor lens design, stacked filters, lens hoods, and wide-angle zoom lenses. Aperture corrects the image by increasing the brightness on the edges of the image where vignettes typically occur.

Note: When you apply a Devignette and Crop adjustment to the same image, Aperture applies the Devignette adjustment prior to the crop in order to correct lens artifacts. Applying the Devignette adjustment before the crop prevents any distortion that would otherwise appear in the cropped image.

Figure. Image before and after a Devignette adjustment.
To remove the vignette from your image
  1. Select an image.

  2. If the Devignette controls are not shown in the Adjustments inspector or the Adjustments pane of the Inspector HUD, choose Devignette from the Adjustments pop-up menu.

  3. By default, the Intensity parameter is set to 1.0. Adjust the Intensity parameter by doing one of the following:

    • Drag the Intensity slider to the left to decrease the amount of brightness applied to the edges of the image, or drag it to the right to increase the brightness.

    • Click the left or right arrow in the Intensity value slider to change the brightness applied to the edges of the image, or drag in the value field.

      The left arrow decreases the amount of brightness applied to the edges of the image, and the right arrow increases the brightness.

    • Double-click the number in the Intensity value slider, then enter a value from 0.0 to 1.0 and press Return.

      Figure. Intensity controls in the Devignette area of the Adjustments inspector.
  4. To adjust the distance Aperture goes from the edge of the image, in pixels, to apply the Devignette adjustment, do one of the following:

    • Drag the Radius slider to the right to increase the number of pixels Aperture goes toward the center of the image to apply the Devignette adjustment, or drag it to the left to limit the vignette to the edges of the image.

    • Click the left or right arrow in the Radius value slider, or drag in the value field.

      The left arrow limits the Devignette adjustment to the edges of the image, and the right arrow moves the Devignette adjustment toward the center point of the image.

    • Double-click the number in the Radius value slider, then enter a value from 0.0 to 2.0 and press Return.

      Figure. Radius controls in the Devignette area of the Adjustments inspector.

The vignette is removed from the image.

For more information about applying a vignette to an image, see Working with the Vignette Controls.

You can also brush the Devignette adjustment on selected parts of an image. For more information, see Making Brushed Adjustments.