Dilation operation (user user specifies the connectivity of the structuring element - 4 or 8).

 

function call:

[out_img1]=vsg('Dilation',in_img1,connected);

 

Arguments:

in_img1 mask image, 3 channel RGB, 1 channel greyscale or binary image, or DICOM image.

connected – an integer specifying whether 4 or 8 connected dilation should be carried out.

 

Description:

Dilation is also referred to as filling and growing and is the expansion of an image set A by a structuring elemt B. It is formally viewed as the combination of the two sets using vector addition of the set elements and is equivalent to Minkowski set addition.

out_img1 – An image which has dimensions the same as the input image. This is an image which has been dilated.

 

Example:

img = openimage('crown.jpg');

[out_img2]=vsg('Dilation',out_img1,4);

[out_img3]=vsg('Dilation',img,4);

h=figure;image(uint8(out_img2));set(h,'Name','Dilation - binary image');

h=figure;image(uint8(out_img3));set(h,'Name','Dilation - Grey scale image');

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