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2.5 KiB
| title | description | ha_release |
|---|---|---|
| Image Processing | Instructions on how to setup image processing with Home Assistant. | 0.36 |
Image processing enables Home Assistant to process images from cameras. Only camera entities are supported as sources.
If you are running Home Assistant over SSL or from within a container, you will have to setup a base URL (base_url) inside the http component.
ALPR
ALPR entities have a vehicle counter attribute vehicles and all found plates are stored in the plates attribute.
The found_plate event is triggered after OpenALPR has found a new license plate.
# Example configuration.yaml automation entry
automation:
- alias: Open garage door
trigger:
platform: event
event_type: image_processing.found_plate
event_data:
entity_id: openalpr.camera_garage_1
plate: BE2183423
...
The following event attributes will be present (platform-dependent): entity_id, plate, confidence
Face
Face entities have a face counter attribute total_faces and all face data is stored in the faces attribute.
The detect_face event is triggered after a Face entity has found a face.
# Example configuration.yaml automation entry
automation:
- alias: Known person in front of my door
trigger:
platform: event
event_type: image_processing.detect_face
event_data:
entity_id: image_processing.door
name: 'Hans Maier'
...
The following event attributes will be present (platform-dependent): entity_id, name, confidence, age, gender, motion, glasses
scan_interval and Optimising Resources
Image processing integrations process the image from a camera at a fixed period given by the scan_interval. This leads to excessive processing if the image on the camera hasn't changed, as the default scan_interval is 10 seconds. You can override this by adding to your config scan_interval: 10000 (setting the interval to 10,000 seconds), and then call the image_processing.scan service when you actually want to perform processing.
# Example configuration.yaml
sensor:
- platform: _AN_IMAGE_PROCESSING_PLATFORM_
scan_interval: 10000
...
automation:
- alias: Scan for faces when motion detected
trigger:
- platform: state
entity_id: sensor.door_motion_sensor
to: 'on'
action:
- service: image_processing.scan
data:
entity_id: image_processing.door
...