OverscanCorrectionTaskConfig

class lsst.ip.isr.OverscanCorrectionTaskConfig(*args, **kw)

Bases: OverscanCorrectionTaskConfigBase

Attributes Summary

doAbsoluteMaxDeviation	Apply the maxDeviation to the absolute value of the deviation? If False, this will be a one-sided cut for positive-only deviations (typically for parallel overscan subtraction.
doParallelOverscan	Correct using parallel overscan after serial overscan correction? (bool, default False)
fitType	The method for fitting the overscan bias level.
leadingColumnsToSkip	Number of leading columns to skip in serial overscan correction.
leadingRowsToSkip	Number of leading rows to skip in parallel overscan correction.
maskPlanes	Mask planes to reject when measuring overscan (List, default ['BAD', 'SAT'])
maxDeviation	Maximum deviation from median (in ADU) to mask in overscan correction; Will be applied to the absolute deviation if doAbsoluteMaxDeviation=True.
numSigmaClip	Rejection threshold (sigma) for collapsing overscan before fit (float, default 3.0)
order	Order of polynomial to fit if overscan fit type is a polynomial, or number of spline knots if overscan fit type is a spline.
overscanIsInt	Treat overscan as an integer image for purposes of fitType=MEDIAN and fitType=MEDIAN_PER_ROW.
parallelOverscanMaskGrowSize	Grow the SAT mask in the parallel overscan region by this many pixels.
parallelOverscanMaskThreshold	Threshold above which pixels in the parallel overscan are masked as bleeds.
trailingColumnsToSkip	Number of trailing columns to skip in serial overscan correction.
trailingRowsToSkip	Number of trailing rows to skip in parallel overscan correction.

Attributes Documentation

doAbsoluteMaxDeviation

Apply the maxDeviation to the absolute value of the deviation? If False, this will be a one-sided cut for positive-only deviations (typically for parallel overscan subtraction. (bool, default True)

doParallelOverscan

Correct using parallel overscan after serial overscan correction? (bool, default False)

fitType

The method for fitting the overscan bias level. (str, default 'MEDIAN')

Allowed values:

'POLY'

Fit ordinary polynomial to the longest axis of the overscan region

'CHEB'

Fit Chebyshev polynomial to the longest axis of the overscan region

'LEG'

Fit Legendre polynomial to the longest axis of the overscan region

'NATURAL_SPLINE'

Fit natural spline to the longest axis of the overscan region

'CUBIC_SPLINE'

Fit cubic spline to the longest axis of the overscan region

'AKIMA_SPLINE'

Fit Akima spline to the longest axis of the overscan region

'MEAN'

Correct using the mean of the overscan region

'MEANCLIP'

Correct using a clipped mean of the overscan region

'MEDIAN'

Correct using the median of the overscan region

'MEDIAN_PER_ROW'

Correct using the median per row of the overscan region

'MEAN_PER_ROW'

Correct using the mean per row of the overscan region

'None'

Field is optional

leadingColumnsToSkip

Number of leading columns to skip in serial overscan correction. (int, default 0)

leadingRowsToSkip

Number of leading rows to skip in parallel overscan correction. (int, default 0)

maskPlanes

Mask planes to reject when measuring overscan (List, default ['BAD', 'SAT'])

maxDeviation

Maximum deviation from median (in ADU) to mask in overscan correction; Will be applied to the absolute deviation if doAbsoluteMaxDeviation=True. (float, default 1000.0)

numSigmaClip

Rejection threshold (sigma) for collapsing overscan before fit (float, default 3.0)

order

Order of polynomial to fit if overscan fit type is a polynomial, or number of spline knots if overscan fit type is a spline. (int, default 1)

overscanIsInt

Treat overscan as an integer image for purposes of fitType=MEDIAN and fitType=MEDIAN_PER_ROW. (bool, default True)

parallelOverscanMaskGrowSize

Grow the SAT mask in the parallel overscan region by this many pixels. This value was determined from the ITL chip in the LATISS camera. (int, default 7)

parallelOverscanMaskThreshold

Threshold above which pixels in the parallel overscan are masked as bleeds. (int, default 100000)

trailingColumnsToSkip

Number of trailing columns to skip in serial overscan correction. (int, default 0)

trailingRowsToSkip

Number of trailing rows to skip in parallel overscan correction. (int, default 0)