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90 lines
2.5 KiB
Markdown
90 lines
2.5 KiB
Markdown
---
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layout: page
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title: "OpenALPR Local"
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description: "Instructions on 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
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to process licences plates from a camera. You can use them to open a garage door
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or trigger any other [automation](/components/automation/).
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For using the result inside an automation rule, take a look at the
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[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
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`alpr` commandline tool.
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If you don't find binaries for your distribution you can compile from source.
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Documentation of how to build OpenALPR is found
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[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
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line tool:
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```bash
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$ cmake -DWITH_TEST=FALSE -DWITH_BINDING_JAVA=FALSE --DWITH_BINDING_PYTHON=FALSE \
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--DWITH_BINDING_GO=FALSE -DWITH_DAEMON=FALSE -DCMAKE_INSTALL_PREFIX:PATH=/usr ..
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```
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For other operating system please refer to the
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[OpenALPR wiki](https://github.com/openalpr/openalpr/wiki).
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Verify your `alpr` installation with:
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```bash
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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 %}
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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 %}
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region:
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description: Country or region. List of supported [values](https://github.com/openalpr/openalpr/tree/master/runtime_data/config).
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required: true
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type: string
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alpr_bin:
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description: The command line tool alpr from OpenALPR software for local processing.
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required: false
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type: string
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default: alpr
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confidence:
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description: The minimum of confidence in percent to process with Home Assistant.
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required: false
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type: integer
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default: 80
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source:
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description: List of image sources.
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required: true
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type: list
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keys:
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entity_id:
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description: A camera entity id to get picture from.
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required: true
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type: string
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name:
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description: This parameter allows you to override the name of your OpenALPR entity.
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required: false
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type: string
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{% endconfiguration %}
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