How can i find a medial axis without using bwmorph?

Hi,

How can i find a medial axis without using bwmorph?

Thanks.

Answer 1

[Image Analyst]

You can probably find skeletonization code somewhere on the net. Just do a search.

Answer 2

[DGM]

If you're trying to avoid bwmorph() specifically for some arbitrary reason, you can use bwskel().

On the other hand, if you're trying to avoid things which require Image Processing Toolbox, then you can use MIMT morphnhood(). It has similar options and syntax as bwmorph(), and for this specific usage, is a drop-in replacement.

% a grayscale image
inpict = imread('threads.png');

% converted to logical
mask = inpict < 150;

%outpict = bwmorph(mask,'skel',Inf); % IPT bwmorph()
outpict = morphnhood(mask,'skel',Inf); % MIMT morphnhood()

imshow(outpict)