Phase contrast

Center of mass / first moment

You can get a first moment [Ros76] visualization of your data set by selecting “Center of mass” in the “Add analysis” dropdown:


Take note of the “Channel” drop down under the right image, where you can select different visualizations derived from the vector field.

Center of mass is also available in the Context API. Please see this example and the reference documentation for create_com_analysis().

Ptychographic reconstruction

Please see the ptychography 4.0 project for ptychography algorithms implemented as LiberTEM UDFs.