[ITK-users] Recentering Output of fast marching

[Lowekamp, Bradley (NIH/NLM/LHC) [C]]

Hello,

Have you looked at the LabelImageStatisticsImageFilter[1]? This should compute what you describe.

The “GetRegion” methods returns a bounding ImageRegion, for a given label. In your case this would be for the label 1.

Brad

[1]https://itk.org/Doxygen/html/classitk_1_1LabelStatisticsImageFilter.html#aa0de894e901cf64495f5690f77b73efb


On 6/26/17, 12:39 PM, "Andaharoo" <andx_roo at live.com> wrote:

    I've been using the fast marching filter to segment out a particular piece of
    a 3d image and now I would like to recenter this segmented part. Sometimes
    the segmented part can be at the edge of the image which makes it hard to
    rotate since it will only rotate around the center. I tried using fast
    marchings getOutputOrigin but that doesn't do what I had hoped it would do.
    If I were to write it would go something along the lines of this with a
    binary image:
    for every pixel
        if the pixel is 1
            if the pixels x val is greater than maxX
                maxX = the pixels x val
            if the pixels x val is smaller than minX
                minX = the pixels x val
            Do the same with the y and z and mins
    Then after getting the extents I coudl just do (minX + maxX) / 2, (minY +
    maxY) / 2, (minZ + maxZ) / 2
    
    
    
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