# Region Shape

Region Shape | You can use the Image Sharpness tool on the entire image or select a specific area of the Current.InputImage to analyze. You can select any of the following region shapes: Circle Ellipse Polygon Rectangle RectangleAffine CircularAnnulusSection EllipticalAnnulusSection
Selected Space Name | The default coordinate space for the region.
Fit In Image | Centers the region within the mask image and adjust its geometric properties so that its default size is based on the image and its Selected Space Name.