morphological opening of volumetric data.

Question

Muhammad Shoaib 2015-11-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/257750-morphological-opening-of-volumetric-data

评论： Image Analyst 2015-11-27

i understand the concept of opening of 2D binary images but never used such opening on volumetric date as in the code below. please explain

nhood = ones([3 3 3]); 
bw = imopen(bw,nhood); % bw is binary volumetric MRI data (28 slices)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2015-11-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/257750-morphological-opening-of-volumetric-data#answer_201320

What's your question? A morphological opening is a local min followed by a local max. If you have a question, please ask it.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Muhammad Shoaib 2015-11-27

waiting for an answer . . .

Image Analyst 2015-11-27

The remaining 3 is the number of "planes" or "slices" in the third dimension. For an analogy, the first two would describe a sheet of paper 3 cm wide by 3 cm long, and the next 3 would mean that there are 3 sheets of paper stacked on top of each other in the third, or "z", direction. So essentially you're telling it to look at every one of the 27 voxels in a 3-by-3-by-3 cube. If you set any of those voxels to 0 or false, then it would tell it so skip considering that/those voxel(s) when computing the local min and local max.

请先登录，再进行评论。