ZScaleMapping#
- class lsst.afw.display.ZScaleMapping(image, nSamples=1000, contrast=0.25)#
Bases:
LinearMappingA mapping for a linear stretch chosen by the zscale algorithm (preserving colours independent of brightness)
x = (I - minimum)/range
Parameters#
- image
Image whose parameters are desired
- nSamples
int The number of samples to use to estimate the zscale parameters
contrast :
float