# \#diffim

**URL:** https://www.rubin.community/tag/diffim/78.md

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## [Questions about the image being subtracted in the AP pipeline](https://www.rubin.community/t/questions-about-the-image-being-subtracted-in-the-ap-pipeline/8820)

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**Author:** [@sfu](https://www.rubin.community/u/sfu)\
**Replies:** 9\
**Last updated:** [July 18, 2024, 8:54pm UTC](https://www.rubin.community/t/questions-about-the-image-being-subtracted-in-the-ap-pipeline/8820 "2024-07-18T20:54:16Z")

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Hi all, I have two questions regarding the image being subtracted in the AP pipeline. I didn’t find how to use the LSST pipeline to do image subtraction between two coadded images. LSST takes a pair of 15s exposures …

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## [How do I run LSST diffim code on DECam images?](https://www.rubin.community/t/how-do-i-run-lsst-diffim-code-on-decam-images/85)

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**Author:** [@mjuric](https://www.rubin.community/u/mjuric)\
**Replies:** 1\
**Last updated:** [September 8, 2015, 5:40pm UTC](https://www.rubin.community/t/how-do-i-run-lsst-diffim-code-on-decam-images/85 "2015-09-08T17:40:29Z")

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Hi everyone (but especially @SimonKrughoff, Yusra and Francisco). What is the current recommended way to run LSST image differencing pipelines on DECam images?