Inheritance diagram for lsst.ip.isr.linearize.LinearizeSquared:

Public Member Functions
def	__call__ (self, image, detector, log=None)

def	checkLinearityType (self, detector)

Static Public Attributes
string	LinearityType = "Squared"

Detailed Description

Correct non-linearity with a squared model

corrImage = uncorrImage + c0*uncorrImage^2

where c0 is linearity coefficient 0 in the AmpInfoCatalog of the detector

Definition at line 194 of file linearize.py.

Member Function Documentation

◆ call()

def lsst.ip.isr.linearize.LinearizeSquared.__call__	(	self,
		image,
		detector,
		log = `None`
	)

Correct for non-linearity

@param[in] image  image to be corrected (an lsst.afw.image.Image)
@param[in] detector  detector info about image (an lsst.afw.cameraGeom.Detector)
@param[in] log  logger (an lsst.log.Log), or None to disable logging;
    a warning is logged if any amplifiers are skipped because the square coefficient is 0

@return an lsst.pipe.base.Struct containing at least the following fields:
- nAmps number of amplifiers found
- nLinearized  number of amplifiers linearized

@throw RuntimeError if the linearity type is wrong

Definition at line 203 of file linearize.py.

◆ checkLinearityType()

def lsst.ip.isr.linearize.LinearizeBase.checkLinearityType	(	self,
		detector
	)

inherited

Verify that the linearity type is correct for this detector

@warning only checks the first record of the amp info catalog

@param[in] detector  detector information (an instance of lsst::afw::cameraGeom::Detector)

@throw RuntimeError if anything doesn't match

Definition at line 62 of file linearize.py.

Member Data Documentation

◆ LinearityType

string lsst.ip.isr.linearize.LinearizeSquared.LinearityType = "Squared"

static

Definition at line 201 of file linearize.py.

The documentation for this class was generated from the following file:

python/lsst/ip/isr/linearize.py

Public Member Functions