void Update()
{
//This is to take the picture, save it and stop capturing the camera image.
if (_webCamTexture.isPlaying && Input.GetKeyDown(KeyCode.Space))
{
_webCamTexture.Pause();
Texture2D snap = new Texture2D(_webCamTexture.width, _webCamTexture.height);
snap.SetPixels(_webCamTexture.GetPixels());
snap.Apply();
var bytes = snap.EncodeToPNG();
_faceApiHelper.Detect(bytes, Callback);
}
}
public async Task <IActionResult> Detect([Bind("PhotoFile")] IFormFile photoFile)
{
if (photoFile != null && photoFile.Length > 0)
{
using (var photoStream = new MemoryStream())
{
await photoFile.CopyToAsync(photoStream);
byte[] photoData = photoStream.ToArray();
List <FaceInfo> faces = await _faceApiHelper.Detect(photoData);
return(Json(faces));
}
}
else
{
return(BadRequest("No image file found."));
}
}
public async Task <IActionResult> DetectFaces([Bind("PhotoFile")] IFormFile photoFile)
{
using (var photoStream = new MemoryStream())
{
await photoFile.CopyToAsync(photoStream);
byte[] photoData = photoStream.ToArray();
var faces = await _faceApiHelper.Detect(photoData);
var result = new DetectFaceResult();
if (faces.Count == 0)
{
result.Data = "No face is detected, please choose a face photo.";
}
else if (faces.Count > 1)
{
result.Data = $"{faces.Count} faces are detected, please choose a photo with one face.";
}
else
{
// mark the face in the image
result.HasDetected = true;
var FaceInfo = faces.First <FaceInfo>();
int left = FaceInfo.faceRectangle.left;
int top = FaceInfo.faceRectangle.top;
int width = FaceInfo.faceRectangle.width;
int height = FaceInfo.faceRectangle.height;
string base64 = ImageHelper.DrawRectangle(photoData, new PointF[] {
new PointF(left, top),
new PointF(left, top + height),
new PointF(left + width, top + height),
new PointF(left + width, top)
});
result.Data = $"data:image/jpeg;base64,{base64}";
}
return(Json(result));
}
}