Unscaled diameter of the largest circle that can be inscribed inside an entire object.

The object is transformed into a binary image. A distance transform is applied on the binary image to find the point with the largest distance to the outline of the entire object. The diameter returned by this feature is equal to twice the value of the largest distance. All holes inside the object are ignored for the calculation.

Size limitation: If the object width or height exceeds 20000 pixel, the feature calculation does not work and returns no result.

• Unit: pixel