reduced darks and flats#
Behavior#
This widget generates dark and/or flat fields for an acquisition.
Average: Computes the mean value.
Median: Computes the median value.
There are two options available:
remove if existing: This will remove dark and reference files if they already exist.
skip if already existing: This will skip dark and/or flat field generation if the files are already present.
Note
The dark and/or flat fields will be generated inside the acquisition directory.
Note
You can access this process without using Orange by running:
tomwer darkref [acquisition folder]
File pattern#
To find the reference and dark files, we use Python’s re library. Here are a few examples of how to use it:
.*conti_dark.*: Filters files containing the phrase conti_dark.
darkend[0-9]{3,4}: Filters files named darkend followed by three or four digits (with the .edf extension).
ref*.*[0-9]{3,4}_[0-9]{3,4}: Filters files named ref, followed by any character and ending with X_Y, where X and Y are groups of three or four digits.
For more examples and usage, see the re library page.