====== Radonalign ======

===== Usage =====
This logic is commonly used before determining the euler angles of class sums. Its purpose is to perform a sensitive mass centering of the class sums based on radon transformation. Usage of this algorithm improves common line finding during the consecutive reconstruction process.

===== I/O =====

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^ Input   ^ Description ^
| Input  | Class sums in real space |

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^ Output   ^ Description ^
| Output | Mass centered class sums in real space  |

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^ New/Changed Header Values ^ Description ^
| Error | √(xVariance+ yVariance) of the given class sum, based on before and after the performed shifts, so basically 2D standard deviation. If no shifts have been performed, the error will be 0. |

===== Additional Information =====
Theory about the general theory of radon aligning can be found [[http://www.ecmjournal.org/journal/smi/pdf/smi97-13.pdf|here]]