Realsenseid

* Improved latency for all basic operations.
* Improved preview image quality.
* Improved accuracy for Anti-Spoofing.
* Fixed a bug in enrollment caused in non-frontal position.
* Low-level security for Anti-Spoofing for better latency.
* Standby now stops the camera, after which FA operations will restart camera automatically.



v.21.0
Note: SDK installer and SKU2 firmware will be re-uploaded soon.

-----------------------------------
* Enroll with RGB image. See the new [EnrollImage](https://github.com/IntelRealSense/RealSenseID/blob/1a2009caa74d987949cf7ce5cb05e5ab0cdbaa71/include/RealSenseID/FaceAuthenticator.h#L120) API and try it in the app.
* Added option in the app to batch enroll multiple users using a json file. Example Json:
json
[
{
"userId": "user1",
"filename": "user1.png"

},
{
"userId": "user2",
"filename": "C:\\devel\\user2.jpg"
}
]


* Full device rotation support - device can now be used at 0/90/180/270 degrees.
* Improved multiple faces processing.
* Improved significantly Anti-spoofing accuracy.
* Increased max serial packets to 8k for improved serial performance.
* Known issues: Spoof algo flow is not supported in 90/270 degrees.

Supported Platforms:

* New dump and preview options in rsid-viewer.
* Ability to dump face cropped images.
* Improved recognition and anti-spoofing accuracy.
* Enabled flipped preview in 180 rotation mode
* Support for new devices (see Supported Devices section below for additional details).

Supported Platforms:

* Added option to enable metadata in windows installer
* Added missing 3rd party files


Supported Platforms:

* New device config options to support multiple faces and algorithm options:
* FaceSelectionPolicy:
- Single (default, authenticate closest face).
- All (authenticate all detected faces (up to 5)).
* AlgoFlow:
- All (default).
- FaceDetectionOnly.
- SpoofOnly.
- RecognitionOnly.
* Preview improvements:
- Added MJPEG 1080p and 720p streams.
- Added an option to display and save RAW10 images of the selected frame.
- UVC metadata support (e.g. timestamp info) - please refer to the README for additional information on how to enable this feature on Windows.

* Authentication loop - automatically stopped even if the host exits without cancelling.
* DetectSpoof API was deprecated (instead set DeviceConfig::AlgoFlow to AlgoFlow::SpoofOnly and invoke Authenticate API. You supposed to get OnResult callback for each detected user.

Supported Platforms:

* Database import/export support [Device mode only]: `rsid-viewer.exe` contains 2 new buttons, when in 'Device Mode' - one will export the database from the device to a json file, the other will import a json compatible file to device and save it.
* FW version 2.6.x or newer must be installed for this feature.
* Right now, usernames must be unique for this to work properly.
* Better face detection capabilities.
* Adaptive learning. Update the user's faceprints when new information can be learned, after a successful authentication attempt.
* Fixed device settings issue with 'advanced mode'.
* Fixed crash caused by trying to resume/pause preview while updating firmware.
* Fixed a crash caused by incorrect order of de-allocating resources.
* Advanced mode features enabled.
* Run Spoof Detection - will return if the user is fake or not. Example can be found in 'rsid-viewer'.
* Camera Dump Mode - get 1920x1080 RAW10 images from the device, instead of a live RGB preview stream.
* Fixed preview resource cleanup in windows.


Supported Platforms: