how to remove objects close to image border

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Abdul Hamzah
Abdul Hamzah 2017-1-28
评论： Image Analyst 2017-1-30
hello everyone, i have a problem related with image processing. btw, i have an image like this :
but i want to remove the object closest to the image border ( in this case, the closest one is on the right of the border)
do you know how to do that? thx before.

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Image Analyst
Image Analyst 2017-1-28
Sorry - I was sleeping, hence the delay on my part.
Simply crop the image with imcrop(), then call imclearborder(), then pad with padarray():
margin = 50; % Whatever
croppedImage = imcrop(binaryImage, [margin, margin, columns - 2 * margin, rows - 2 * margin]);
binaryImage = imclearborder(croppedImage);
binaryImage = logical(padarray(binaryImage, margin));
  2 个评论
Abdul Hamzah
Abdul Hamzah 2017-1-30
thank you very much for your response..but with that method, would it work if the size of the object varies?? the picture i posted above was just an example of the pictures whose object near the border i want to remove...
Image Analyst
Image Analyst 2017-1-30
No. It will remove any object, no matter what size, if it enters the margin. If you want size based filtering, see bwareafilt() or bwareaopen().
And be sure to be aware of stereology

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Abdul Hamzah
Abdul Hamzah 2017-1-28
hello, anyone?

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