supremum of openings by set of linear structuring elements

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rky
rky 2014-7-24
评论： rky 2014-7-30
I want to extract elongated structures with using angle of rotation like r=[15....90;-15...-90] so that supremum of opening consists of set of lines.
so how i should proceed
  2 个评论
Image Analyst
Image Analyst 2014-7-24
First you should attach your images so we can see if imopen() is the best approach to get your elongated structures. I mean, why not just threshold and call regionprops to get the orientations (angles)? I don't know because you did not attach your image.
rky
rky 2014-7-25
Basically i want to extract blood vessels from my retinal images

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Image Analyst
Image Analyst 2014-7-26
  3 个评论
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Image Analyst
Image Analyst 2014-7-28
Define supremum. Do you just mean the max? Why not just do
openedImage = imopen(originalImage,se);
if i == 0
resultImage = openedImage;
else
resultImage = max(resultImage, openedImage);
end
rky
rky 2014-7-30
if i want angle of rotation i = [15....90;-15...-90] and also [105...180;195...270] how i should do .

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