mirror of
https://github.com/node-red/node-red-nodes.git
synced 2025-03-01 10:37:43 +00:00
31 lines
1.4 KiB
Markdown
31 lines
1.4 KiB
Markdown
node-red-node-exif
|
|
==================
|
|
|
|
A <a href="http://nodered.org" target="_new">Node-RED</a> node to extract Exif information from images.
|
|
|
|
Install
|
|
-------
|
|
|
|
Run the following command in your Node-RED user directory - typically `~/.node-red`
|
|
|
|
npm install node-red-node-exif
|
|
|
|
## Breaking Change - v1
|
|
|
|
This node now uses the more supported exifreader library so that it handles more features and recent exif spec updates, for example data associated with drones. The output message has consequently changed into a much flatter set of properties and thus breaks all existing (0.x) instances.
|
|
|
|
Usage
|
|
-----
|
|
|
|
Extracts <a href="http://en.wikipedia.org/wiki/Exchangeable_image_file_format">Exif</a> information from JPEG or WEBP images.
|
|
|
|
This node expects an incoming JPEG image as a buffer. If Exif data is present, it extracts the data into a `msg.exif` object.
|
|
|
|
If the Exif data also contains location information this is extracted as `msg.location`.
|
|
|
|
`msg.payload` retains the original, unmodified image buffer.
|
|
|
|
You can set it into "worldmap" mode - in this mode the payload contains the "location" data, not the original image, but can be sent directly to a node-red-contrib-worldmap node for visualisation.
|
|
|
|
Or you can set it into TAK mode - If used with the TAK Ingest node it can extract the exif data from the overall TAK event payload and adds the exif properties to `msg.payload.exif` instead of `msg.exif`.
|