Ellipse
  1. Click an arbitrary position on the image.
    A rotatable elliptical window centered on that position will appear.
  2. Move the control points of the window to adjust the position and size of the elliptical mask.
    Click [UNDO] to cancel the previous operation.
  3. Click [DRAW].
    The elliptical mask is drawn and filled in.
    If you click [ERASE], the mask is erased in the configured elliptical shape.
  4. Click [OK]. The mask setup is complete.
    Clicking [CANCEL] will cancel the setup.