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59 lines
2.2 KiB
Markdown
59 lines
2.2 KiB
Markdown
---
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layout: page
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title: "OpenALPR Local"
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description: "Instructions how to integrate licences plates with OpenALPR local into Home Assistant."
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date: 2017-01-09 00:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: openalpr.png
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ha_category: Image Processing
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featured: false
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ha_release: 0.36
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redirect_from: /components/openalpr/
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---
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[OpenALPR](http://www.openalpr.com/) integration for Home Assistant allows you to process licences plates from a camera. You can use them to open a garage door or trigger any other [automation](https://home-assistant.io/components/automation/).
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For using inside automation look on [component](/components/image_processing) page.
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### {% linkable_title Local installation %}
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If you want process all data locally, you need version 2.3.1 or higher of the `alpr` commandline tool.
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If you don't find binaries for your distribution you can compile from source. Documention of how to build openalpr is found [here](https://github.com/openalpr/openalpr/wiki).
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On a Debian system you can use this `cmake` command to build only the command line tool:
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```bash
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$ cmake -DWITH_TEST=FALSE -DWITH_BINDING_JAVA=FALSE --DWITH_BINDING_PYTHON=FALSE --DWITH_BINDING_GO=FALSE -DWITH_DAEMON=FALSE -DCMAKE_INSTALL_PREFIX:PATH=/usr ..
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```
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Verify your `alpr` installation with:
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```
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$ wget -O- -q http://plates.openalpr.com/h786poj.jpg | alpr -
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```
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### {% linkable_title Configuration Home Assistant %}
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```yaml
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# Example configuration.yaml entry
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image_processing:
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- platform: openalpr_local
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region: eu
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source:
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- entity_id: camera.garage
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```
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Configuration variables:
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- **region** (*Required*): Country or region. List of supported [values](https://github.com/openalpr/openalpr/tree/master/runtime_data/config).
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- **alpr_bin** (*Optional*): The command line tool alpr from OpenALPR software for local processing. Defaults to `alpr`.
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- **confidence** (*Optional*): The minimum of confidence in percent to process with Home Assistant. Defaults to 80.
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- **source** array (*Required*): List of image sources.
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- **entities** (*Required*): A list of devices to add in Home Assistant.
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- **name** (*Optional*): This parameter allows you to override the name of your OpenALPR entity.
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