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LSST Data Management Base Package
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Public Member Functions | Public Attributes | List of all members
lsst.display.matplotlib.matplotlib.ZScaleNormalize Class Reference
Inheritance diagram for lsst.display.matplotlib.matplotlib.ZScaleNormalize:
lsst.display.matplotlib.matplotlib.Normalize

Public Member Functions

 __init__ (self, image=None, nSamples=1000, contrast=0.25)
 

Public Attributes

 mapping
 

Detailed Description

Provide a zscale stretch for mtv()

Definition at line 834 of file matplotlib.py.

Constructor & Destructor Documentation

◆ __init__()

lsst.display.matplotlib.matplotlib.ZScaleNormalize.__init__ ( self,
image = None,
nSamples = 1000,
contrast = 0.25 )
Initialise an object able to carry out a zscale mapping

@param image to be used to estimate the stretch
@param nSamples Number of data points to use (default: 1000)
@param contrast Control the range of pixels to display around the
                median (default: 0.25)

Definition at line 836 of file matplotlib.py.

836 def __init__(self, image=None, nSamples=1000, contrast=0.25):
837 """Initialise an object able to carry out a zscale mapping
838
839 @param image to be used to estimate the stretch
840 @param nSamples Number of data points to use (default: 1000)
841 @param contrast Control the range of pixels to display around the
842 median (default: 0.25)
843 """
844
845 # The object used to perform the desired mapping
846 self.mapping = afwRgb.ZScaleMapping(image, nSamples, contrast)
847
848 super().__init__(self.mapping.minimum[0], self.mapping.maximum)
849
850

Member Data Documentation

◆ mapping

lsst.display.matplotlib.matplotlib.ZScaleNormalize.mapping

Definition at line 846 of file matplotlib.py.


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