# Region

Use the Region tab to select the shape of the input region:

Use the following options to configure the input region:

Option | Description
--- | ---
Region Mode | Choose from: Pixel Aligned Bounding Box encloses the defined region within a rectangle. The tool includes portions of the image that are outside the defined region but within the bounding rectangle. Pixel Aligned Bounding Box Adjust Mask encloses the defined region within a rectangle, but masks out the image portions that are outside the region but inside the enclosing rectangle. The result is that the defined region is closer to what you specify.
Region Shape | The shape of the copy region. Selecting None=Use entire image means that the entire input image becomes the region. The set of region-defining parameters depends on the selected Region Shape.
Selected Space Name | The coordinate space in which the copy region is interpreted. For more information, see the topic Coordinate Space Names.
Select Mode | Available when Region Shape is Rectangle or RectangleAffine, selects the set of parameters that define the rectangle. If RectangleAffine is chosen, note that the angles of rotation and skew can be specified in degrees or radians, although the underlying tool keeps the measurements in radians.
Fit In Image | Centers the copy region within Current.InputImage.