Video Filters
OpenTAK ICU supports a number of video filters provided by the RootEncoder library. These filters can be enabled and disabled while streaming from either the devices front or back cameras, or from a UVC camera.
Text Overlay Filter
The text overlay filter will add the stream path, GPS location, and current timestamp to the bottom left corner of the video. There is an option under Settings → Video Settings → Text Overlay Time Zone to switch between UTC and your local time zone.
Chroma Key Filter
The chroma key filter will replace a green background with either the default background image or an image of your choice. To set the image, tap on Settings → Video Settings → Chroma Key Background and choose any image on your device. This filter requires a bright green background. You can test it by enabling the filter in OpenTAK ICU and pointing your camera at the green rectangle below. You should see the default background or the image you selected.