Add a background ================ Background is an optional [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) attribute to display any image behind pipeline visualisation. ![Background](../../img/background.png) ## Load and display ArFrame background [ArFrame.background](../../argaze.md/#argaze.ArFeatures.ArFrame.background) can be enabled thanks to a dedicated JSON entry. Here is an extract from the JSON ArFrame configuration file where a background picture is loaded and displayed: ```json { "name": "My FullHD screen", "size": [1920, 1080], ... "background": "./bosch.png", ... "image_parameters": { ... "background_weight": 1 } } ``` !!! note As explained in [visualisation chapter](visualisation.md), the resulting image is accessible thanks to [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method. Now, let's understand the meaning of each JSON entry. ### *background* The path to an image file on disk. ### *background_weight* The weight of background overlay in [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) between 0 and 1.