background removal and return back the shape

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Tulips
Tulips 2012-10-15
how to do background removal after I crop the image such in this link:
http://www.flickr.com/photos/80166922@N06/8089628353/in/photostream
background removal can be used to display the contains of triangle shape and cut out noise outside the triangle. can someone explain how to do this?thank you.

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回答（1 个）

Image Analyst
Image Analyst 2012-10-15
I'd probably start out using texture segmentation and see how it goes. I'm assuming that the background will have higher variance than the object. So you might want to use stdfilt() or entropyfilt().

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