# \#noise-reduction

**URL:** https://discourse.julialang.org/tag/noise-reduction/1691.md

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## [Astrophotographic denoising without machine learning](https://discourse.julialang.org/t/astrophotographic-denoising-without-machine-learning/133986)

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**Author:** [@brainandforce](https://discourse.julialang.org/u/brainandforce)\
**Replies:** 11\
**Last updated:** [November 20, 2025, 8:10pm UTC](https://discourse.julialang.org/t/astrophotographic-denoising-without-machine-learning/133986 "2025-11-20T20:10:47Z")

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I’m on a quest to approach the hobby of astrophotography from a data science perspective. I’ve put several restrictions on myself (all processing is done with free software, no machine learned tools are allowed) because …

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## [\[ANN\] L1TrendFiltering.jl: Imprementation of l1 Trend Filtering](https://discourse.julialang.org/t/ann-l1trendfiltering-jl-imprementation-of-l1-trend-filtering/121811)

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**Author:** [@rmsmsgood](https://discourse.julialang.org/u/rmsmsgood)\
**Replies:** 3\
**Last updated:** [October 27, 2024, 6:13pm UTC](https://discourse.julialang.org/t/ann-l1trendfiltering-jl-imprementation-of-l1-trend-filtering/121811 "2024-10-27T18:13:10Z")

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L1TrendFiltering.jl In this week, I noticed there is no l1 trend filtering package in julia. I’m happy to share this package. You can test julia l1tf function as following: using L1TrendFiltering using Plots, CSV, DataF…