image2: Stage 2 Imaging Processing¶
- Config
image2.cfg
- Class
Stage 2 imaging processing applies additional instrumental corrections and calibrations that result in a fully calibrated individual exposure.
The list of steps applied by the ProcessImagerL2Pipeline pipeline is shown in the table
below, currently only the background, dark_current and flat_field have
been imported into iris_pipeline and customized for IRIS.
The other steps still call classes from jwst and have not been tested, they
are still in the class to simplify the future porting process.
image2 |
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Arguments¶
The image2 pipeline has one optional argument:
--save_bsub boolean default=False
If set to True, the results of
the background subtraction step will be saved to an intermediate file,
using a product type of “_bsub” or “_bsubints”, depending on whether the
data are 2D (averaged over integrations) or 3D (per-integration results).
Inputs¶
2D or 3D countrate data¶
- Data model
IRISImageModel- File suffix
_rate or _rateints
The input to ProcessImagerL2Pipeline is
a countrate exposure, in the form of either “_rate” or “_rateints”
data. A single input file can be processed or an ASN file listing
multiple inputs can be used, in which case the processing steps will be
applied to each input exposure, one at a time. If “_rateints” products are
used as input, each step applies its algorithm to each
integration in the exposure, where appropriate.
Outputs¶
2D or 3D background-subtracted data¶
- Data model
IRISImageModel- File suffix
_bsub or _bsubints
This is an intermediate product that is only created if “–save_bsub” is set
to True and will contain the data as output from the
background step.
If the input is a “_rate” product, this will be a “_bsub” product, while
“_rateints” inputs will be saved as “_bsubints.”
2D or 3D calibrated data¶
- Data model
IRISImageModel- File suffix
_cal or _calints
The output is a fully calibrated, but unrectified, exposure, using the product type suffix “_cal” or “_calints”, depending on the type of input, e.g. “jw80600012001_02101_00003_mirimage_cal.fits”.