lsst.afw g093c4c12c6+20210d9dd1
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Public Member Functions | List of all members
lsst.afw.display.rgb._rgbContinued.AsinhZScaleMapping Class Reference
Inheritance diagram for lsst.afw.display.rgb._rgbContinued.AsinhZScaleMapping:
lsst.afw.display.rgb._rgbContinued.AsinhMapping lsst.afw.display.rgb._rgbContinued.Mapping

Public Member Functions

def __init__ (self, image, Q=8, pedestal=None)
 

Detailed Description

A mapping for an asinh stretch, estimating the linear stretch by zscale

x = asinh(Q (I - z1)/(z2 - z1))/Q

Parameters
----------
image
    The image to analyse, or a list of 3 images to be converted to an intensity image
Q : `int`
    The asinh softening parameter
pedestal : `float` or sequence of `float`, optional
    The value, or array of 3 values, to subtract from the images

    N.b. pedestal, if not None, is removed from the images when calculating the zscale
    stretch, and added back into Mapping.minimum[]

See also
--------
AsinhMapping

Definition at line 324 of file _rgbContinued.py.

Constructor & Destructor Documentation

◆ __init__()

def lsst.afw.display.rgb._rgbContinued.AsinhZScaleMapping.__init__ (   self,
  image,
  Q = 8,
  pedestal = None 
)

Reimplemented from lsst.afw.display.rgb._rgbContinued.AsinhMapping.

Definition at line 346 of file _rgbContinued.py.


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