I | Image (B+ Image, Bitmap) | A Bitmap Plus Image or Bitmap
W | Width Domain (Interval) | The horizontal threshold domain for the filtered blobs
H | Height Domain (Interval) | The vertical threshold domain for the filtered blobs
C | Background Color (Colour) | The background color to be ignored
F | Coupled Filtering (Bool) | If true filter by height and width, if false filter by height or width.
