DM-45990: Create initial_pvi background lumpiness metric #1114
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enourbakhsh
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mrawls
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May 7, 2025
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Please rebase into a single commit. I suggest you add a line to the update_background_stats docstring that makes it clear this method adds two entries to summary: skyBg and skyBgNormRange, and (bonus level) a one-sentence description of what each one is. Otherwise it feels like stealth undocumented things that would warrant a "Returns" docstring if it weren't just updating summary in place.
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enourbakhsh
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Jul 13, 2025
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| bctrl = afwMath.BackgroundControl(afwMath.Interpolate.NATURAL_SPLINE) | ||
| bctrl.setNxSample(int(exposure.getMaskedImage().getWidth()/bgGridSize) + 1) | ||
| bctrl.setNySample(int(exposure.getMaskedImage().getHeight()/bgGridSize) + 1) | ||
| nx = int(exposure.getMaskedImage().getWidth()/bgGridSize) + 1 | ||
| ny = int(exposure.getMaskedImage().getHeight()/bgGridSize) + 1 | ||
| bctrl = afwMath.BackgroundControl(nx, ny) | ||
| interpStyle = afwMath.Interpolate.AKIMA_SPLINE | ||
| undersampleStyle = afwMath.REDUCE_INTERP_ORDER | ||
| approxStyle = afwMath.ApproximateControl.UNKNOWN | ||
| approxOrderX = 0 | ||
| approxOrderY = 0 | ||
| approxWeighting = False | ||
| backobj = afwMath.makeBackground(exposure.getMaskedImage().getImage(), bctrl) | ||
| background = afwMath.BackgroundList() | ||
| background.append(backobj) | ||
| background.append( | ||
| (backobj, interpStyle, undersampleStyle, approxStyle, approxOrderX, approxOrderY, approxWeighting) | ||
| ) |
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Needed to update this to support the background.getImage() call in the task.
enourbakhsh
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Jul 13, 2025
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| import numpy as np | ||
| from scipy.stats import median_abs_deviation as sigmaMad | ||
| import astropy.units as units | ||
| from astropy.time import Time | ||
| from astropy.coordinates import AltAz, SkyCoord, EarthLocation | ||
| from lsst.daf.base import DateTime | ||
|
|
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| import lsst.pipe.base as pipeBase | ||
| import lsst.pex.config as pexConfig | ||
| import lsst.afw.math as afwMath | ||
| import astropy.units as units | ||
| import lsst.afw.image as afwImage | ||
| import lsst.afw.math as afwMath | ||
| import lsst.geom as geom | ||
| import lsst.ip.isr as ipIsr | ||
| import lsst.pex.config as pexConfig | ||
| import lsst.pipe.base as pipeBase | ||
| import numpy as np | ||
| from astropy.coordinates import AltAz, EarthLocation, SkyCoord | ||
| from astropy.time import Time | ||
| from lsst.daf.base import DateTime | ||
| from lsst.meas.algorithms import ScienceSourceSelectorTask | ||
| from lsst.utils.timer import timeMethod | ||
| import lsst.ip.isr as ipIsr | ||
| from scipy.stats import median_abs_deviation as sigmaMad | ||
| from skimage.util import view_as_windows |
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Simply organized the imports here.
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