__init__(self, data=None, header=None, do_not_scale_image_data=False, ignore_blank=False, uint=True, scale_back=None)
The data in the HDU.
The header to be used (as a template). If header
is :None:None:`None`, a minimal header will be provided.
If :None:None:`True`, image data is not scaled using BSCALE/BZERO values when read. (default: False)
If :None:None:`True`, the BLANK header keyword will be ignored if present. Otherwise, pixels equal to this value will be replaced with NaNs. (default: False)
Interpret signed integer data where BZERO
is the central value and BSCALE == 1
as unsigned integer data. For example, int16
data with BZERO = 32768
and BSCALE = 1
would be treated as uint16
data. (default: True)
If :None:None:`True`, when saving changes to a file that contained scaled image data, restore the data to the original type and reapply the original BSCALE/BZERO values. This could lead to loss of accuracy if scaling back to integer values after performing floating point operations on the data. Pseudo-unsigned integers are automatically rescaled unless scale_back is explicitly set to :None:None:`False`. (default: None)
Construct a primary HDU.
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