使用二进制掩码c ++ itk获取感兴趣的区域

Question

I am pretty new to ITK and have therefore almost no experiences using it. My problem is:

I have two nifti images: one medical image and one binary image representing a Volume of interest. I would like to extract from the medical image only the region of the volume of interest. I would like to store the intensity value of this region in a multidimensional array. Until now I read the image and the mask and stored their values in a multidimensional array. i could now compare the values pixel by pixel but I hope, there might be an easier way?

Answer 1

That sounds like a job for Region of interest filter . First you need to determine the "bounding region" around your mask. You should use an iterator for that. If you construct your pipeline (reader->regionOfInterest->writer) without intermediate Update() calls and with streaming , with some image formats (eg meta-image) your intensity image does not need to be even completely read from disk.

You might also be interested in LabelGeometryImageFilter .