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

Synopsis

B = mmimg2se( fd, FLAT, f )

Input

fd: Binary image (logical uint8).

FLAT: String. 'FLAT' or 'NON-FLAT'. Default: "FLAT".

f: Gray-scale (uint8 or uint16) or binary image (logical uint8). Default: No parameter.

Output

B: Structuring element.

Description

mmimg2se creates a flat structuring element B from the binary image fd or creates a non-flat structuring element b from the binary image fd and the gray-scale image f. fd represents the domain of b and f represents the image of the points in fd.

Examples

Let us apply mmimg2se to create structuring elements. In the example below, the elementary cross is created.

a = mmimg2se([0 1 0;1 1 1;0 1 0]); Warning: Converting image from double to binary uint8. mmseshow(a) ans = 0 1 0 1 1 1 0 1 0

In this next example, the image sizes are even. Note the origin of the structuring element.

b = uint8([0 1 1 1; 1 1 1 0]) b = 0 1 1 1 1 1 1 0 b1 = mmimg2se(b); Warning: Converting image from uint8 to binary uint8. mmseshow(b1) ans = 0 0 0 0 0 0 0 1 1 1 0 1 1 1 0

In the example below, a non-flat cross is created.

c = [0 1 0;1 1 1;0 1 0]; d = [0 0 0;0 1 0;0 0 0]; e = mmimg2se(c,'NON-FLAT',d); Warning: Converting image from double to binary uint8. Warning: Converting image from double to uint16. mmseshow(e) ans = 0 1 0 1 2 1 0 1 0

Equation

Flat structuring element:

Non-flat structuring element:

H and W are the number of rows and columns of f, respectively.

See Also

mmdil - Dilate an image by a structuring element.

mmfreedom - Control automatic data type conversion.

mmsebox - Create a box structuring element.

mmsecross - Cross structuring element.

mmsedisk - Create a disk or a semi-sphere structuring element.

mmseline - Create a line structuring element.

mmseshow - Display a structuring element as an image.

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