# \#stack
**URL:** https://www.rubin.community/tag/stack/215.md
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## [How to compute PSF Image/kernel Image without background noise](https://www.rubin.community/t/how-to-compute-psf-image-kernel-image-without-background-noise/1713)
**Author:** [@Daraexus](https://www.rubin.community/u/Daraexus)\
**Replies:** 2\
**Last updated:** [March 13, 2017, 5:46pm UTC](https://www.rubin.community/t/how-to-compute-psf-image-kernel-image-without-background-noise/1713 "2017-03-13T17:46:38Z")
Hi I’m trying to compute the local PSF of a calexp in order to perform a quick-and-dirty injection of transients. However, whenever I try to use the methods computeKernelImage() and computeImage(), I obtain the shape of…
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## [Rubin PCW 2020: “Stack Club”](https://www.rubin.community/t/rubin-pcw-2020-stack-club/4348)
**Author:** [@jeffcarlin](https://www.rubin.community/u/jeffcarlin)\
**Replies:** 0\
**Last updated:** [August 27, 2020, 11:21pm UTC](https://www.rubin.community/t/rubin-pcw-2020-stack-club/4348 "2020-08-27T23:21:17Z")
The “Stack Club” session at this year’s Project & Community Workshop highlighted the ongoing Stack Club, whose members write tutorial notebooks explaining various aspects of the Rubin Observatory Data Management science …
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## [Get the LSST science pipelines delivered to your computer](https://www.rubin.community/t/get-the-lsst-science-pipelines-delivered-to-your-computer/2930)
**Author:** [@FabioHernandez](https://www.rubin.community/u/FabioHernandez)\
**Replies:** 0\
**Last updated:** [May 25, 2018, 6:57am UTC](https://www.rubin.community/t/get-the-lsst-science-pipelines-delivered-to-your-computer/2930 "2018-05-25T06:57:55Z")
We are happy to announce the availability of a service for getting both stable and weekly releases of the LSST science pipelines (a.k.a. the stack) delivered to your computer without you needing to take care of installin…