The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending
We present an open source Python library for simulating overlapping (i.e., blended) images of galaxies and performing self-consistent comparisons of detection and deblending algorithms based on a suite of metrics. The package, named Blending Toolkit (BTK), serves as a modular, flexible, easy-to-inst...
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| Format: | Article |
| Language: | English |
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Maynooth Academic Publishing
2025-02-01
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| Series: | The Open Journal of Astrophysics |
| Online Access: | https://doi.org/10.33232/001c.129699 |
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| author | Ismael Mendoza Andrii Torchylo Thomas Sainrat Axel Guinot Alexandre Boucaud Maxime Paillasa Camille Avestruz Prakruth Adari Eric Aubourg Biswajit Biswas James Buchanan Patricia Burchat Cyrille Doux Remy Joseph Sowmya Kamath Alex I. Malz Grant Merz Hironao Miyatake Cécile Roucelle Tianqing Zhang LSST Dark Energy Science Collaboration |
| author_facet | Ismael Mendoza Andrii Torchylo Thomas Sainrat Axel Guinot Alexandre Boucaud Maxime Paillasa Camille Avestruz Prakruth Adari Eric Aubourg Biswajit Biswas James Buchanan Patricia Burchat Cyrille Doux Remy Joseph Sowmya Kamath Alex I. Malz Grant Merz Hironao Miyatake Cécile Roucelle Tianqing Zhang LSST Dark Energy Science Collaboration |
| author_sort | Ismael Mendoza |
| collection | DOAJ |
| description | We present an open source Python library for simulating overlapping (i.e., blended) images of galaxies and performing self-consistent comparisons of detection and deblending algorithms based on a suite of metrics. The package, named Blending Toolkit (BTK), serves as a modular, flexible, easy-to-install, and simple-to-use interface for exploring and analyzing systematic effects related to blended galaxies in cosmological surveys such as the Vera Rubin Observatory Legacy Survey of Space and Time (LSST). BTK has three main components: (1) a set of modules that perform fast image simulations of blended galaxies, using the open source image simulation package GalSim; (2) a module that standardizes the inputs and outputs of existing deblending algorithms; (3) a library of deblending metrics commonly defined in the galaxy deblending literature. In combination, these modules allow researchers to explore the impacts of galaxy blending in cosmological surveys. Additionally, BTK provides researchers who are developing a new deblending algorithm a framework to evaluate algorithm performance and make principled comparisons with existing deblenders. BTK includes a suite of tutorials and comprehensive documentation. The source code is publicly available on GitHub at https://github.com/LSSTDESC/BlendingToolKit. |
| format | Article |
| id | doaj-art-4836099f82f64fdb803ed6b3e5488f12 |
| institution | DOAJ |
| issn | 2565-6120 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Maynooth Academic Publishing |
| record_format | Article |
| series | The Open Journal of Astrophysics |
| spelling | doaj-art-4836099f82f64fdb803ed6b3e5488f122025-08-20T02:41:29ZengMaynooth Academic PublishingThe Open Journal of Astrophysics2565-61202025-02-01810.33232/001c.129699The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblendingIsmael MendozaAndrii TorchyloThomas SainratAxel GuinotAlexandre BoucaudMaxime PaillasaCamille AvestruzPrakruth AdariEric AubourgBiswajit BiswasJames BuchananPatricia BurchatCyrille DouxRemy JosephSowmya KamathAlex I. MalzGrant MerzHironao MiyatakeCécile RoucelleTianqing ZhangLSST Dark Energy Science CollaborationWe present an open source Python library for simulating overlapping (i.e., blended) images of galaxies and performing self-consistent comparisons of detection and deblending algorithms based on a suite of metrics. The package, named Blending Toolkit (BTK), serves as a modular, flexible, easy-to-install, and simple-to-use interface for exploring and analyzing systematic effects related to blended galaxies in cosmological surveys such as the Vera Rubin Observatory Legacy Survey of Space and Time (LSST). BTK has three main components: (1) a set of modules that perform fast image simulations of blended galaxies, using the open source image simulation package GalSim; (2) a module that standardizes the inputs and outputs of existing deblending algorithms; (3) a library of deblending metrics commonly defined in the galaxy deblending literature. In combination, these modules allow researchers to explore the impacts of galaxy blending in cosmological surveys. Additionally, BTK provides researchers who are developing a new deblending algorithm a framework to evaluate algorithm performance and make principled comparisons with existing deblenders. BTK includes a suite of tutorials and comprehensive documentation. The source code is publicly available on GitHub at https://github.com/LSSTDESC/BlendingToolKit.https://doi.org/10.33232/001c.129699 |
| spellingShingle | Ismael Mendoza Andrii Torchylo Thomas Sainrat Axel Guinot Alexandre Boucaud Maxime Paillasa Camille Avestruz Prakruth Adari Eric Aubourg Biswajit Biswas James Buchanan Patricia Burchat Cyrille Doux Remy Joseph Sowmya Kamath Alex I. Malz Grant Merz Hironao Miyatake Cécile Roucelle Tianqing Zhang LSST Dark Energy Science Collaboration The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending The Open Journal of Astrophysics |
| title | The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending |
| title_full | The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending |
| title_fullStr | The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending |
| title_full_unstemmed | The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending |
| title_short | The Blending ToolKit: A simulation framework for evaluation of galaxy detection and deblending |
| title_sort | blending toolkit a simulation framework for evaluation of galaxy detection and deblending |
| url | https://doi.org/10.33232/001c.129699 |
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