Blending ToolKit
Project description
BlendingToolKit
Summary
Framework for fast generation and analysis of galaxy blends catalogs. This toolkit is a convenient way of producing multi-band postage stamp images of blend scenes.
Documentation can be found at https://lsstdesc.org/BlendingToolKit/index.html
Workflow
- In red are the BTK objects that can be customized in various ways by BTK users.
Running BlendingToolKit
- BlendingToolKit (btk) requires an input catalog that contains information required to simulate galaxies and blends. This repository includes sample input catalogs with a small number of galaxies that can be used to draw blend images with btk. See tutorials to learn how to run btk with these catalogs.
- CatSim Catalog corresponding to one square degree of sky and processed WeakLensingDeblending catalogs can be downloaded from here.
- Cosmo DC2 catalog requires pre-processing in order to be used as input catalog to btk. Refer to this notebook on how to convert the DC2 catalog into a CatSim-like catalog that can be analyzed with btk.
Installation
BTK is pip installable, with the following command:
pip install blending_toolkit
Although you might run into problems installing galsim
. In case of any issues, please see the more detailed installation instructions here.
For required packages, see pyproject.toml under the [tool.poetry.dependencies]
block. For developers, you will also need the packages under the [tool.poetry.dev-dependencies]
block.
Contributing
See CONTRIBUTING.md
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