Merge pull request #613 from lsst/tickets/DM-32827

DM-32827: Explicitly apply operations to calexp.maskedImage.
lsst · Dec 7, 2021 · edd35a2 · edd35a2
2 parents aca5567 + 633d7bb
commit edd35a2
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/python/lsst/pipe/tasks/makeCoaddTempExp.py b/python/lsst/pipe/tasks/makeCoaddTempExp.py
@@ -859,9 +859,8 @@ def prepareCalibratedExposures(self, calExpList, backgroundList=None, skyCorrLis
         for index, (calexp, background, skyCorr) in enumerate(zip(calExpList,
                                                                   backgroundList,
                                                                   skyCorrList)):
-            mi = calexp.maskedImage
             if not self.config.bgSubtracted:
-                mi += background.getImage()
+                calexp.maskedImage += background.getImage()
 
             if externalSkyWcsCatalog is not None or externalPhotoCalibCatalog is not None:
                 detectorId = calexp.getInfo().getDetector().getId()
@@ -915,7 +914,7 @@ def prepareCalibratedExposures(self, calExpList, backgroundList=None, skyCorrLis
 
             # Apply skycorr
             if self.config.doApplySkyCorr:
-                mi -= skyCorr.getImage()
+                calexp.maskedImage -= skyCorr.getImage()
 
             indices.append(index)