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This article mainly introduces the relevant knowledge of "what is the method of matlab morphological expansion and corrosion". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "what is the method of matlab morphological expansion and corrosion" can help you solve the problem.

% enlarge the image to enlarge the shape

Use the imdilate function to extend the image

% morphological expansion operation expands or thickens foreground objects in an image

BW = zeros (9, 10)

BW (4JV 6pm 4R 7) = 1

Imshow (imresize (BW,40,'nearest'))

Create a structural element to use with imdilate

To expand a geometric object, you usually need to create a structural element that has the same shape as the object

SE = strel ('square',3)

Pass input images and structural elements to imdilate

Add 1 to all edges of the foreground object

BW2 = imdilate (BW,SE)

Imshow (imresize (BW2,40,'nearest'))

For comparison, create a structural element of a different shape

Expand the original image with new structural elements

SE2 = strel ('diamond',1)

BW3 = imdilate (BW,SE2)

Imshow (imresize (BW3,40,'nearest'))

Montage ({BW,BW2,BW3}, 'Size', [3 1])

%% corrodes the image to remove fine lines

% use the imerode function to corrupt the binary image

% image read and display image

BW1 = imread ('circbw.tif')

Imshow (BW1)

Create a diagonal structure element

SE = strel ('arbitrary',eye (7))

% corrosion image

BW2 = imerode (BW1,SE)

% display original image and corrosion image

The diagonal stripe is due to the shape of the structural element.

Imshow (BW2)

Montage ({BW1,BW2}, 'Size', [2 1])

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