Cognitive ServicesのEmotion APIhttp://2vr.jp/2016/12/24/oculus-vr-xmas2016/ ‎

YomEmotion.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.VR.WSA.WebCam;
using System.Linq;

public class YomEmotion : MonoBehaviour {
	
	public string EmotionAPIKey = "";
	public float CaptureInterval = 60f;
	
	PhotoCapture photoCapture = null;
	
	void Start() {
		Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();
		PhotoCapture.CreateAsync(false, delegate(PhotoCapture captureObject) {
			photoCapture = captureObject;
			
			CameraParameters c = new CameraParameters();
			c.hologramOpacity = 0.0f;
			c.cameraResolutionWidth = cameraResolution.width;
			c.cameraResolutionHeight = cameraResolution.height;
			c.pixelFormat = CapturePixelFormat.JPEG;
			
			captureObject.StartPhotoModeAsync(c, delegate(PhotoCapture.PhotoCaptureResult result) {
				Debug.Log("Photo Mode started");
				InvokeRepeating("ExecutePictureProcess", 0, CaptureInterval);
			});
		});
	}
	
	void ExecutePictureProcess() {
		if (photoCapture == null) return;
		
		photoCapture.TakePhotoAsync(delegate(PhotoCapture.PhotoCaptureResult result, PhotoCaptureFrame photoCaptureFrame) {
			List<byte> photo = new List<byte>();
			photoCaptureFrame.CopyRawImageDataIntoBuffer(photo);
			
			StartCoroutine(PostToEmotionAPI(photo.ToArray()));
		});
	}
	
	
	IEnumerator<object> PostToEmotionAPI(byte[] photo) {
		
		var url = "https://api.projectoxford.ai/emotion/v1.0/recognize";
		var headers = new Dictionary<string, string>() {
			{ "Ocp-Apim-Subscription-Key", EmotionAPIKey },
			{ "Content-Type", "application/octet-stream" }
		};
		WWW www = new WWW(url, photo, headers);
		
		yield return www;
		
		if (www.error != null) {
			Debug.Log(www.error);
		}
		
		string responseString = www.text;
		JSONObject j = new JSONObject(responseString);
		Debug.Log(j);
		
		foreach (var result in j.list) {
			var p = result.GetField("faceRectangle");
			string id = string.Format("{0},{1},{2},{3}", p.GetField("left"), p.GetField("top"), p.GetField("width"), p.GetField("height"));
			var obj = result.GetField("scores");
			string highestEmote = "Unknown";
			float highestC = 0;
			for (int i = 0; i < obj.list.Count; i++)
			{
				string key = obj.keys[i];
				float c = obj.list[i].f;
				if (c > highestC) {
					highestEmote = key;
					highestC = c;
				}
			}
			Debug.Log("Emotion: " + highestEmote);
		}
		
	}
	
	void OnDestroy() {
		photoCapture.StopPhotoModeAsync(delegate(PhotoCapture.PhotoCaptureResult res) {
			photoCapture.Dispose();
			photoCapture = null;
			Debug.Log("Photo Mode stopped");
		});
	}
}