DQInitStep¶
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class
jwst.dq_init.DQInitStep(name=None, parent=None, config_file=None, _validate_kwds=True, **kws)[source]¶ Bases:
jwst.stpipe.StepInitialize the Data Quality extension from the mask reference file.
The dq_init step initializes the pixeldq attribute of the input datamodel using the MASK reference file. For some FGS exp_types, initalize the dq attribute of the input model instead. The dq attribute of the MASK model is bitwise OR’d with the pixeldq (or dq) attribute of the input model.
Create a
Stepinstance.- Parameters
name (str, optional) – The name of the Step instance. Used in logging messages and in cache filenames. If not provided, one will be generated based on the class name.
parent (Step instance, optional) – The parent step of this step. Used to determine a fully-qualified name for this step, and to determine the mode in which to run this step.
config_file (str path, optional) – The path to the config file that this step was initialized with. Use to determine relative path names of other config files.
**kws (dict) – Additional parameters to set. These will be set as member variables on the new Step instance.
Attributes Summary
Methods Summary
process(input)Perform the dq_init calibration step
Attributes Documentation
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reference_file_types= ['mask']¶
Methods Documentation