Bases: astropy.modeling.core.Model
Simple Imaging Polynomial (SIP) model.
The SIP convention is used to represent distortions in FITS image headers. See [R5] for a description of the SIP convention.
Parameters : | crpix : list or ndarray of length(2)
a_order : int
a_coeff : dict
coeff_prefix : str: ‘a’, ‘b’, ‘A’ or ‘B’
b_order : int
b_coeff : dict
a_inv_order : int
a_inv_coeff : dict
b_inv_order : int
b_inv_coeff : dict
param_dim : int
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References
[R5] | (1, 2) David Shupe, et al, ADASS, ASP Conference Series, Vol. 347, 2005 |
Attributes Summary
n_inputs | int(x=0) -> int or long |
n_outputs | int(x=0) -> int or long |
Methods Summary
inverse() |
Attributes Documentation
Methods Documentation