Image Segmentation built into MATLAB?!

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Philip
Philip 2011-5-24
Does anyone know if there are any image segmentation methods built into any of the MATLAB toolboxes? I have tried a 'lookfor' on the word 'segment' but haven't found anything interesting...

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回答（2 个）

Wolfgang Schwanghart

Hi Philip, look at the function watershed. In addition, there is a very good example using morphological reconstruction.

doc watershed

Cheers, W.

Sean de Wolski
Sean de Wolski 2011-5-24
doc gt
doc lt
doc ge
doc le
doc eq
doc im2bw %Image Processing Toolbox (and doc graythresh)
doc edge %IPT
doc imerode %IPT
doc imdilate %IPT
doc imopen %IPT
doc imclose %IPT
doc bwareaopen %IPT
doc bwmorph %IPT
Just a few of them... If you want real information you'll have to provide images with expected results.
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Philip
Philip 2011-5-24
Ideally, just the building and the sky...
Sean de Wolski
Sean de Wolski 2011-5-24
The sky and road are easy: a lower threshold on the blue channel, i.e.:
>> Ibw = I(:,:,3)<90; %blue less than 90
The grass can be done with an AND statement and a lower threshold on the green channel. A few morphological operations would get you what you want.

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