| Scripting Resources for DigitalMicrograph™ |
Compute 2D CTF Map |
|
Function |
Computes a 2D contrast transfer function map. |
Version |
version:20211015, v1.0 |
Author |
D. R. G. Mitchell |
Acknowledgements |
|
Comments |
Computes a 2D contrast transfer function (CTF) map of defocus versus reciprocal distance. This can be used to match with an experimental CTF to identify the defocus.
|
System Requirements |
Tested on GMS 2.32, but should work on all versions of GMS. |
Known Issues |
In practice comparing calculated with experimental data is challenging, because in the calculated map, there is no damping of the CTF - which occurs experimentally, due to instabilities, drift etc. Rather than intensity match, a better approach is to look at the positions of zero crossings in the derivative image. |
Supported |
Yes |
Included Files |
Main script. |
Source Code |
see attached script |