CameraFaceDetection

Camera face detection sample

This sample applies an end-to-end approach to demonstrate how to write a camera application using the Windows.Media.Capture API in conjunction with orientation sensors to cover the functions that most camera apps will require. In addition, it will show a simple way to use the Face Detection effect included in Windows. This sample is based on the CameraStarterKit.

Specifically, this sample will cover how to:

1. Manage the MediaCapture object throughout the lifecycle of the app and through navigation events.
2. Acquire a camera located on a specific side of the device. In this case, the sample attempts to get the front camera.
3. Start and stop the preview to a UI element, including mirroring for front-facing cameras.
4. Take a regular picture to a file, taking into account the orientation of the device.
5. Handle rotation events for both, the device moving in space and the page orientation changing on the screen. Also apply any necessary corrections to the preview stream rotation.
6. Handle MediaCapture Failed event to clean up the MediaCapture instance when an error occurs.
7. Manage the Face Detection effect, including creation, configuration, activation/deactivation, registering for events, and cleanup.
8. Render face bounding boxes as an overlay on the camera preview, taking mirroring and rotation into account.

This sample also implements a custom UI to better simulate the experience that a camera application would provide, so any messages intended for the developer are printed to the debug console.

Related topics

Samples

CameraStarterKit

Conceptual

Capture photos and video with MediaCapture

Media capture using capture device

Using the Face Detection effect

Reference

Windows.Media.Capture.MediaCapture namespace

Windows.Media.Capture.MediaCaptureInitializationSettings constructor

Windows.Media.Capture.MediaCaptureInitilizationSettings.VideoDeviceId property

Windows.Devices.Enumeration namespace

Windows.Devices.Enumeration.DeviceInformation class

Windows.Devices.Sensors.SimpleOrientationSensor class

Windows.Graphics.Display.DisplayInformation class

Windows.Phone.UI.Input.HardwareButtons.CameraPressed event

Windows.Graphics.Imaging.BitmapDecoder class

Windows.Graphics.Imaging.BitmapEncoder class

System requirements

Hardware: Camera

Client: Windows 10

Server: Windows Server 2016 Technical Preview

Phone: Windows 10

Build the sample

1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
2. Start Microsoft Visual Studio 2015 and select File > Open > Project/Solution.
3. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript). Double-click the Visual Studio 2015 Solution (.sln) file.
4. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample:

1. Select Build > Deploy Solution.

Deploying and running the sample:

1. To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or select Debug > Start Without Debugging.