mmcenter - Center filter.

Synopsis

y = mmcenter( f, b )

Input

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

b: Structuring element. Default: Elementary cross (mmsecross).

Output

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

Description

mmcenter creates the image y by computing recursively the morphological center, relative to the structuring element b, of the image f .

Examples

f=mmreadgray('gear.tif'); g=mmcenter(f,mmsedisk(2)); mmshow(f); mmshow(g); (f) (g)

Equation

Center filter primitive:

Center filter:

Algorithm

function y=mmcenter_equ( f, b )
y = f;
diff = 0;
while(diff~=1)
   aux = y;
   beta1 = mmasf(y,'COC',b,1);
   beta2 = mmasf(y,'OCO',b,1);
   y = mmunion(mmintersec(y,beta1),beta2);
   diff = mmisequal(aux,y);
end; 

See Also

mmclose - Morphological closing.

mmfreedom - Control automatic data type conversion.

mmimg2se - Create a structuring element from a pair of images.

mmopen - Morphological opening.

mmsebox - Create a box structuring element.

mmsecross - Cross structuring element.

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