How to find the nearest voxel of a 3D image based on some specific intensity value...

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banikr
banikr 2019-8-22
编辑： banikr 2020-5-14
So I want to replace the abnormal intensity values from a 3D image. If the intensity is >1800 then I will replace it with nearest voxel value less than 1800.
I believe I can do it with hard coding... but is there any function to do that simply??
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Rik
Rik 2020-5-14
It is not clear to me what indices are tissue and which are electrodes. Do you mean all electrodes are marked with label 20?
banikr
banikr 2020-5-14
编辑：banikr 2020-5-14
>> unique(lab)
ans =
0
1
2
3
4
8
10
20
Here label 20 is electrodes.
0 is for background and rest are different tissue labels.

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