Area-granulometry: an improved estimator of size distribution of image objects

The most commonly used morphological procedure for estimating size distribution of image components is the granulometry proposed by Matheron (1978). Sometimes this method requires some a priori knowledge of image component shape and fails to produce satisfactory results on certain images when the image components are non-flat. A new method (using morphological area-open) is proposed which is simple, more straightforward and the size distribution obtained is more informative