lsst.afw g9b27d6183c+80279584a1
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Public Member Functions | |
def | __init__ (self, image, Q=8, pedestal=None) |
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.
def lsst.afw.display.rgb._rgbContinued.AsinhZScaleMapping.__init__ | ( | self, | |
image, | |||
Q = 8 , |
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pedestal = None |
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) |
Reimplemented from lsst.afw.display.rgb._rgbContinued.AsinhMapping.
Definition at line 346 of file _rgbContinued.py.