mmsymdif - Symmetric difference between two images.

Synopsis

y = mmsymdif( f1, f2 )

Input

f1: Gray-scale (uint8 or uint16) or binary image (logical uint8).

f2: Gray-scale (uint8 or uint16) or binary image (logical uint8).

 

Obs: f1, f2 must have the same data type.

Output

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

Description

mmsymdif creates the image y by taken the union of the subtractions of f1 from f2 and f2 from f1. When f1 and f2 are binary images, y represents the set of points that are in f1 and not in f2 or that are in f2 and not in f1 .

Examples

Gray scale image:

a = uint8([1 2 3 4 5]); b = uint8([5 4 3 2 1]); mmsymdif(a,b) ans = 4 2 0 2 4

c = mmreadgray('tplayer1.tif'); d = mmreadgray('tplayer2.tif'); e = mmsymdif(c,d); mmshow(c); mmshow(d); mmshow(e); (c) (d) (e)

Equation

Algorithm

function g = mmsymdif_equ(f1, f2)
g = mmunion(mmsubm(f1,f2),mmsubm(f2,f1));

See Also

mmfreedom - Control automatic data type conversion.

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