mmcthin - Image transformation by conditional thinning.

Synopsis

y = mmcthin( f, g, Iab, n, theta, DIRECTION )

Input

f: Binary image (logical uint8).

g: Binary image (logical uint8).

Iab: Interval. Default: Homotopic thinning interval (mmhomothin).

n: Non-negative integer. Number of iterations. Default: Infinite (-1).

theta: Degrees of rotations: 45, 90, or 180. Default: 45.

DIRECTION: String. 'CLOCKWISE' or ' ANTI-CLOCKWISE'. Default: "CLOCKWISE".

Output

y: Binary image (logical uint8).

Description

mmcthin creates the binary image y by performing a thinning of the binary image f conditioned to the binary image g. The number of iterations of the conditional thinning is n and in each iteration the thinning is characterized by rotations of theta of the interval Iab.

Equation

Algorithm

function y = mmcthin_equ( f, g, Iab, n, theta, DIRECTION )
  y = f;
  for i=1:n
    for alpha=0:theta:360-theta
      Iab = mminterot(Iab, alpha, DIRECTION);
      y = mmunion(mmsubm(y,mmsupgen(y,Iab)),g);
    end;
  end; 

See Also

mmendpoints - Interval to detect end-points.

mmfreedom - Control automatic data type conversion.

mmhomothin - Interval for homotopic thinning.

mmse2hmt - Create a Hit-or-Miss Template (or interval) from a pair of structuring elements.

mmthin - Image transformation by thinning.

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