I’m trying to understand my results that I get from pyradiomics - FeatureExtractor and I have two questions:
- I want to understand what values the extractor gets me, so I calculate manually the energy, max, min in the ROI to compare the results with pyradomics results. I didn’t get the same values. I checked this on the example in radiomics (brain) (with one label)
my method - I upload the mask and the image to an float array with nrrd.read() and did manually calculate…for exp, I calculate the max value in the lesion :
image = nrrd.read(path/to/brain_image)
mask = = nrrd.read(path/to/brain_mask_image)
max(image[mask == 1])
and then compare the results from the pyradiomics value.
anyone can explain me why I don’t get the same values?
- what the different between seg Extract to voxel Extract? what the meaning of feature map?
how can I analyse the voxel Extract?