LSSTApplications
15.0+21,16.0+1,16.0+3,16.0+4,16.0+8,16.0-1-g2115a9e+2,16.0-1-g4515a79+6,16.0-1-g5c6f5ee+4,16.0-1-g7bb14cc,16.0-1-g80120d7+4,16.0-1-g98efed3+4,16.0-1-gb7f560d+1,16.0-14-gb4f0cd2fa,16.0-2-g1ad129e+1,16.0-2-g2ed7261+1,16.0-2-g311bfd2,16.0-2-g568a347+3,16.0-2-g852da13+6,16.0-2-gd4c87cb+3,16.0-3-g099ede0,16.0-3-g150e024+3,16.0-3-g1f513a6,16.0-3-g958ce35,16.0-4-g08dccf71+4,16.0-4-g128aaef,16.0-4-g84f75fb+5,16.0-4-gcfd1396+4,16.0-4-gde8cee2,16.0-4-gdfb0d14+1,16.0-5-g7bc0afb+3,16.0-5-g86fb31a+3,16.0-6-g2dd73041+4,16.0-7-g95fb7bf,16.0-7-gc37dbc2+4,w.2018.28
LSSTDataManagementBasePackage
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A mapping for a linear stretch chosen by the zscale algorithm (preserving colours independent of brightness) More...
Public Member Functions | |
def | __init__ (self, image, nSamples=1000, contrast=0.25) |
A linear stretch from [z1, z2] chosen by the zscale algorithm. More... | |
def | mapIntensityToUint8 (self, intensity) |
def | makeRgbImage (self, imageR=None, imageG=None, imageB=None, xSize=None, ySize=None, rescaleFactor=None) |
Convert 3 arrays, imageR, imageG, and imageB into a numpy RGB image. More... | |
def | intensity (self, imageR, imageG, imageB) |
Return the total intensity from the red, blue, and green intensities. More... | |
Public Attributes | |
maximum | |
minimum | |
A mapping for a linear stretch chosen by the zscale algorithm (preserving colours independent of brightness)
x = (I - minimum)/range
def lsst.afw.display.rgb.ZScaleMapping.__init__ | ( | self, | |
image, | |||
nSamples = 1000 , |
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contrast = 0.25 |
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A linear stretch from [z1, z2] chosen by the zscale algorithm.
image | Image whose parameters are desired |
nSamples | The number of samples to use to estimate the zscale parameters |
contrast | The number of samples to use to estimate the zscale parameters |
Definition at line 240 of file rgb.py.
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inherited |
Return the total intensity from the red, blue, and green intensities.
This is a naive computation, and may be overridden by subclasses
Definition at line 143 of file rgb.py.
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inherited |
Convert 3 arrays, imageR, imageG, and imageB into a numpy RGB image.
imageR | Image to map to red (if None, use the image passed to the ctor) |
imageG | Image to map to green (if None, use imageR) |
imageB | Image to map to blue (if None, use imageR) |
xSize | Desired width of RGB image (or None). If ySize is None, preserve aspect ratio |
ySize | Desired height of RGB image (or None) |
rescaleFactor | Make size of output image rescaleFactor*size of the input image (or None) |
N.b. images may be afwImage.Images or numpy arrays
Definition at line 87 of file rgb.py.
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inherited |
Return an array which, when multiplied by an image, returns that image mapped to the range of a uint8, [0, 255] (but not converted to uint8) The intensity is assumed to have had minimum subtracted (as that can be done per-band)