DetectCoaddSourcesTask: record variance scaling factor

Without this value, it's difficult to make simulations with the same noise properties as our coadds.
lsst · Nov 1, 2017 · dcf5c4d · dcf5c4d
1 parent 366a661
commit dcf5c4d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/python/lsst/pipe/tasks/multiBand.py b/python/lsst/pipe/tasks/multiBand.py
@@ -290,7 +290,8 @@ def runDetection(self, exposure, idFactory):
         - backgrounds: list of backgrounds
         """
         if self.config.doScaleVariance:
-            scaleVariance(exposure.getMaskedImage(), self.config.mask, log=self.log)
+            varScale = scaleVariance(exposure.getMaskedImage(), self.config.mask, log=self.log)
+            self.metadata.add("variance_scale", varScale)
         backgrounds = afwMath.BackgroundList()
         if self.config.doInsertFakes:
             self.insertFakes.run(exposure, background=backgrounds)