How to itk snap caculate mri Components and separate them to some image for us can  multi_component display

I have multicenter datasets need to turn MRI dicom format to nifit format, but some mri have more than one 3D image and stack, when i compare the head information of dicom, i cant find the different infor to separate them, but itk can and unfortunately i cant use it to batch process. So i want to know how itk implement this and how i can use in python for me to process these chaotic data