Table of Contents |
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Summary
CcpiRingArtefactFilterVoCentering | |||||
Process category | Brief description | Computational demand (low, medium, high) | Comment(s) | Reference(s) | Common alternative process(es) |
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correctorfilter | To suppress ring artefacts. An analytical formula for ring artefact suppression in X-ray tomography and references therein.find an optimal value of CoR automatically. | Reliable method for calculating the center of rotation in parallel-beam tomography | VoCenteringIterative |
Parameters
Code Block | ||
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>>> disp -avv ------------------------------------------------------------------------------------- 1) CcpiRingArtefactFilterVoCentering(savu.plugins.ring_removalcentering.ccpi_ring_artefact_filter)vo_centering) A plugin to perform ring artefact removal find the center of rotation per frame 1) preview : [] 1) A slice list of required frames (sinograms) to use in num_seriesthe :calulation 1of the High aspectcentre rationof compensationrotation (this will not reduce the data size for plate-like objects only) subsequent plugins). 2) start_pixel : None The approximate centre. If value is None, take the param_rvalue :from 0.005nxs file else set The correction strength -to decreaseimage (typicallycentre. in order of magnitude steps3) to increasesearch_area ring: supression, or increase to reduce ring supression(-50, 50) Search area from horizontal approximate centre of the image. 34) in_datasets : [] Create a list of the dataset(s) to process. 5) 4 search_radius : 6 Use for fine searching. 6) ratio : 0.5 The ratio between the size of object and FOV of the camera. 7) out_datasets : ['cor_raw', 'cor_fit'] Create aThe default names. 8) datasets_to_populate : [] A list of the dataset(s) to createdatasets which require this information. 59) paramrow_ndrop : 20 0 Drop lines around vertical Unknown description (for plate-like objects only)center of the mask. 10) step : 0.5 Step of fine searching. ------------------------------------------------------------------------------------- >>> |
Item | Parameter name | Parameter format | Example(s) | Comment(s) | |
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Parameter value | Effect | ||||
1 |
preview | ||||
2 |
start_ |
pixel | |||||
3 | search_area | ||||
4 | in_datasets |
5 | search_radius | ||||
6 | ratio | ||||
7 | out_datasets |
8 | datasets_to_populate | ||||
9 | row_drop | ||||
10 | step |
Usage
Cont.