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OpenCV
======
ArGaze provides a ready-made contexts to process cursor position over Open CV window and process movie images.
To select a desired context, the JSON samples have to be edited and saved inside an [ArContext configuration](../configuration_and_execution.md) file.
Notice that the *pipeline* entry is mandatory.
```json
{
JSON sample
"pipeline": ...
}
```
Read more about [ArContext base class in code reference](../../../argaze.md/#argaze.ArFeatures.ArContext).
## Cursor
::: argaze.utils.contexts.OpenCV.Cursor
### JSON sample
```json
{
"argaze.utils.contexts.OpenCV.Cursor": {
"name": "Open CV cursor",
"pipeline": ...
}
}
```
## Movie
::: argaze.utils.contexts.OpenCV.Movie
### JSON sample
```json
{
"argaze.utils.contexts.OpenCV.Movie": {
"name": "Open CV movie",
"path": "./src/argaze/utils/demo/tobii_record/segments/1/fullstream.mp4",
"pipeline": ...
}
}
```
## Camera
::: argaze.utils.contexts.OpenCV.Camera
### JSON sample
```json
{
"argaze.utils.contexts.OpenCV.Camera": {
"name": "Open CV camera",
"identifier": 0,
"pipeline": ...
}
}
```
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