"Effect: Zoom" dialog box

Used to apply an effect where an image appears to be expanding around a specified center.

[Center] field

The center of the effect is displayed. The position of the center is specified by dragging the mark, provided in the dialog preview display.

[Radius] field

The radius of the effect is displayed as a number of pixels. The radius is specified by dragging the mark, provided in the dialog preview display.

[Strength] slider

The degree of the zoom effect is specified with an integer within a range of 1 and 10.