Expert Answer
John Williams answered .
2025-11-20
From my understanding, you have a 3D image dataset with a lot of distortions, and you would like to smooth it by using some sort of image filtering.
If you are using R2014b or earlier:
The MATLAB function “fspecial” allows you to create predefined 2D filters (like Gaussian, Averaging, etc.) to 2D images. However, the functionality of using "fspecial" or a similar function to 3D images is not available in these MATLAB releases. As a workaround, you can create your own filter for " imfilter ". Alternatively, you can use the filter provided on this webpage Note that the MathWorks does not give any warranty or support for functions provided by third-parties.
If you are using R2015a or later:
You may choose from multiple 3D filtering options from the Image Processing Toolbox, such as "imgaussfilt3" or “medfilt3”, to filter out the noise and distortion in the 3D image. Refer to the doc page for more information about Image Filtering.
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