Blob Blob is a rectangular region of the screen (measured in pixels) with an index-code. See also: Calibration Guide Base class: _BlipValue Properties area : float (Read-Only) boundingRect : Rect (Read-Only) circularity : float (Read-Only) code : int (Read-Only) convexity : float (Read-Only) cx : float (Read-Only) cy : float (Read-Only) ellipse : RotatedBlobRect (Read-Only) iProjector : int (Read-Only) inertia : float (Read-Only) levelDetectThreshold : int (Read-Only) sc : int (Read-Only)