Preprocessing tool: pyFAI-average

Purpose

This tool is used to average out a set of dark current images using mean or median filter (along the image stack). One can also reject outliers be specifying a cutoff (remove cosmic rays / zingers from dark)

It can also be used to merge many images from the same sample when using a small beam and reduce the spotty-ness of Debye-Scherrer rings. In this case the “max-filter” is usually recommended.

Options:

Usage: pyFAI-average [options] -o output.edf file1.edf file2.edf ...

positional arguments:
FILE Files to be processed
optional arguments:
-h, --help show this help message and exit
-V, --version show program’s version number and exit
-o OUTPUT, --output OUTPUT
 Output/ destination of average image
-m METHOD, --method METHOD
 Method used for averaging, can be ‘mean’(default) or ‘min’, ‘max’, ‘median’, ‘sum’, ‘quantiles’
-c CUTOFF, --cutoff CUTOFF
 Take the mean of the average +/- cutoff * std_dev.
-F FORMAT, --format FORMAT
 Output file/image format (by default EDF)
-d DARK, --dark DARK
 Dark noise to be subtracted
-f FLAT, --flat FLAT
 Flat field correction
-v, --verbose switch to verbose/debug mode
-q QUANTILES, --quantiles QUANTILES
 average out between two quantiles -q 0.20-0.90

System Message: ERROR/3 (/build/pyfai-IEJ3lZ/pyfai-0.12.0+dfsg/doc/source/man/pyFAI-average.rst, line 42)

Command ‘pyFAI-average –help’ failed: [Errno 2] No such file or directory: ‘pyFAI-average’