mmhdome - Remove peaks with contrast smaller than h.

Synopsis: y = mmhdome( f, h, Bc )

Input: f: Gray-scale (uint8 or uint16) image.; h: Contrast parameter. Default: 1.; Bc: Structuring element. Structuring element ( connectivity). Default: Elementary cross (mmsecross).

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

Description: mmhdome inf-reconstructs the gray-scale image f from the marker created by the subtraction of the positive integer value h from f, using connectivity Bc. This operator removes connected peaks with contrast smaller than h.

Examples

Numerical example:

a = uint8([...
    4    3    6   1    3   5    2;...
    2    9    6   1    6   7   3;...
    8    9    3   2    4   9   4;...
    3    1    2   1    2   4   2]);
b = mmhdome(a,2,mmsebox)

b =
     4     3     6     1     3     5     2
     2     7     6     1     6     7     3
     7     7     3     2     4     7     4
     3     1     2     1     2     4     2

Signal example:

f = mmreadgray('r4x2_256.tif');
s=f(10,1:end/2);
t = mmhdome(s,10);
plot(s);
plot([s',t']);

(s)

(t)

Image example:

f = mmreadgray('r4x2_256.tif');
mmshow(f);
fb = mmhdome(f,50);
mmshow(fb);
mmshow(mmregmax(fb));

(f)

(fb)

(mmregmax(fb))

Equation

Algorithm

function y=mmhdome_equ( f, h, bc)
 g = mmsubm(f,h);
 y = mminfrec(g,f,bc);

See Also: mmareaopen - Area opening.; mmfreedom - Control automatic data type conversion.; mmhbasin - Remove basins with contrast smaller than h.; mmsebox - Create a box structuring element.; mmsecross - Cross structuring element.; mmvdome - Remove domes with volume smaller than v.

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