Currently, to transfer an image from MITK to Python, the image information is read and a image in Python is created manually by pasting these information.
This Copy&Paste mechanism is quite fragile and could be solved more performant.
One possibility is to use SWIG for the communication between MITK and Python for images. A solution for this is discussed in T27324.
It should also be investigated if there are other reasonable solutions beside SWIG.