Types of problems which can be fixed include:
- Barrel or pincushion distortion
- Incorrect horizontal and/or vertical perspective
- Angled horizons
Settings
The following settings can be adjusted:
- Distortion—controls the strength (and type) of distortion. Drag the slider to the left to remove barrel distortion (where straight edges are bowed outwards). Drag to the right to remove pincushion distortion (where straight edges a bowed inwards).
- Horizontal—controls an image's horizontal perspective. Drag the slider until horizontal lines become parallel.
- Vertical—controls an image's vertical perspective. Drag the slider until vertical lines become parallel.
- Rotation—sets the angle of the image. Drag the slider to the left to rotate anti-clockwise. Drag to the right to rotate clockwise.
- Scale—sets the size of the image from the centre. This is useful for removing unwanted transparent areas which appear after applying the settings above.