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processing:backgroundgeneral
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processing:backgroundgeneral [2019/09/04 17:05] smerkel |
processing:backgroundgeneral [2019/09/05 12:55] (current) smerkel |
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| The diffraction from the //sample grains//, that give rise to well-defined diffraction spots are removed and **//do not contribute//** to the median image! | The diffraction from the //sample grains//, that give rise to well-defined diffraction spots are removed and **//do not contribute//** to the median image! | ||
| - | Creating an average image can be done with [[xray_data:averagemanyedf|timelessMeanFileSeries]] which is part of the [[software:timelesstools|TIMEleSS tools]]. Creating the median can be done with ''median.py'' which comes with [[software:fabian|Fabian]]. | + | Creating an average image can be done with [[xray_data:averagemanyedf|timelessMeanFileSeries]] which is part of the [[software:timelesstools|TIMEleSS tools]]. Creating the median can be done with ''median.py'' which comes with [[software:fabian|Fabian]]. You can also calculate median and average images with [[software:imagemath|ImageMath]] but we have not used it in a while. There is an issue with file formats. |
| The median image is less affected by outliers than the average and is probably a better representation of your background. For some purposes you might still need to use the average image. | The median image is less affected by outliers than the average and is probably a better representation of your background. For some purposes you might still need to use the average image. | ||
processing/backgroundgeneral.1567616730.txt.gz · Last modified: 2019/09/04 17:05 by smerkel
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