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mmpatspec
Pattern spectrum (also known as granulometric size density).

Synopsis

h = mmpatspec ( f , type = 'OCTAGON', n = 65535, Bc = NullStrel, Buser = NullStrel )

Input

f	Image Binary image
type	String Disk family: 'OCTAGON', 'CHESSBOARD', 'CITY-BLOCK', 'LINEAR-V', 'LINEAR-H', 'LINEAR-45R', 'LINEAR-45L', 'USER'. Default: `'OCTAGON'` ('OCTAGON')
n	Double Maximum disk radii. Default: `65535` (65535)
Bc	Structuring Element Connectivity for the reconstructive granulometry. Used if '-REC' suffix is appended in the 'type' string. Default: `NullStrel` (3x3 elementary cross)
Buser	Structuring Element User disk, used if 'type' is 'USER'. Default: `NullStrel` (3x3 elementary cross)

Output

h	Image Gray-scale (uint8 or uint16) or binary image a `uint16` vector.

Description

Compute the Pattern Spectrum of a binary image. See [Mar89]. The pattern spectrum is the histogram of the open transform, not taking the zero values.

Equation

See also

mmopen	Morphological opening.
mmopentransf	Open transform.
mmsedisk	Create a disk or a semi-sphere structuring element.

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