mmcero - Erode an image conditionally.

Synopsis: y = mmcero( f, g, b, n )

Input: f: Gray-scale (uint8 or uint16) or binary image (logical uint8).; g: Gray-scale (uint8 or uint16) or binary image (logical uint8). Conditioning image.; b: Structuring element. Default: Elementary cross (mmsecross).; n: Non-negative integer. (number of iterations). Default: 1.; Obs: f, g must have the same data type.

Output: y: Gray-scale (uint8 or uint16) or binary image (logical uint8).

Description: mmcero creates the image y by eroding the image f by the structuring element b conditionally to g. This operator may be applied recursively n times.

Examples

f = mmneg(mmtext('hello'));
mmshow(f);
g = mmdil(f,mmseline(7,90)) ;
mmshow(g);
a1=mmcero(g,f,mmsebox) ;
mmshow(a1);
a13=mmcero(a1,f,mmsebox,13);
mmshow(a13) ;

(f)

(g)

(a1)

(a13)

Equation

equation

Algorithm

function y=mmcero_equ(f,g,b,n)
  y = mmunion(f,g);
  for i=1:n
    ero = mmero(y,b);
    y = mmunion(ero,g);
  end

See Also: mmero - Erode an image by a structuring element.; mmfreedom - Control automatic data type conversion.; mmimg2se - Create a structuring element from a pair of images.; mmsebox - Create a box structuring element.; mmsecross - Cross structuring element.; mmsuprec - Sup-reconstruction.

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