public override void ViewDidLoad()
{
base.ViewDidLoad();
ButtonText = "Detect Stop Sign";
OnButtonClick +=
delegate
{
using (Image <Bgr, byte> stopSignModel = new Image <Bgr, byte>("stop-sign-model.png"))
using (Image <Bgr, Byte> image = new Image <Bgr, Byte>("stop-sign.jpg"))
{
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <Image <Gray, Byte> > stopSignList = new List <Image <Gray, byte> >();
List <Rectangle> stopSignBoxList = new List <Rectangle>();
StopSignDetector detector = new StopSignDetector(stopSignModel);
detector.DetectStopSign(image, stopSignList, stopSignBoxList);
watch.Stop(); //stop the timer
foreach (Rectangle rect in stopSignBoxList)
{
image.Draw(rect, new Bgr(Color.Red), 2);
}
Size frameSize = FrameSize;
using (Image <Bgr, byte> resized = image.Resize(frameSize.Width, frameSize.Height, Emgu.CV.CvEnum.Inter.Cubic, true))
{
MessageText = String.Format("Detection time: {0} milli-seconds", watch.Elapsed.TotalMilliseconds);
SetImage(resized);
}
}
};
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
OnButtonClick += delegate
{
using (Image <Bgr, byte> stopSignModel = new Image <Bgr, byte>(Assets, "stop-sign-model.png"))
using (Image <Bgr, Byte> image = PickImage("stop-sign.jpg"))
{
if (image == null)
{
return;
}
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <Mat> stopSignList = new List <Mat>();
List <Rectangle> stopSignBoxList = new List <Rectangle>();
StopSignDetector detector = new StopSignDetector(stopSignModel);
detector.DetectStopSign(image.Mat, stopSignList, stopSignBoxList);
watch.Stop(); //stop the timer
SetMessage(String.Format("Detection time: {0} milli-seconds", watch.Elapsed.TotalMilliseconds));
foreach (Rectangle rect in stopSignBoxList)
{
image.Draw(rect, new Bgr(System.Drawing.Color.Red), 2);
}
SetImageBitmap(image.ToBitmap());
}
};
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
ButtonText = "Detect Stop Sign";
OnButtonClick +=
delegate
{
using (Mat stopSignModel = new Mat("stop-sign-model.png"))
using (Mat image = new Mat("stop-sign.jpg"))
{
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <Mat> stopSignList = new List <Mat>();
List <Rectangle> stopSignBoxList = new List <Rectangle>();
StopSignDetector detector = new StopSignDetector(stopSignModel);
detector.DetectStopSign(image, stopSignList, stopSignBoxList);
watch.Stop(); //stop the timer
foreach (Rectangle rect in stopSignBoxList)
{
CvInvoke.Rectangle(image, rect, new MCvScalar(0, 0, 255), 2);
}
Size frameSize = FrameSize;
using (Mat resized = new Mat())
{
CvInvoke.ResizeForFrame(image, resized, frameSize);
MessageText = String.Format("Detection time: {0} milli-seconds", watch.Elapsed.TotalMilliseconds);
SetImage(resized);
}
}
};
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
OnImagePicked += (sender, image) =>
{
using (Mat stopSignModel = new Mat(Assets, "stop-sign-model.png"))
{
if (image == null)
{
return;
}
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <Mat> stopSignList = new List <Mat>();
List <Rectangle> stopSignBoxList = new List <Rectangle>();
StopSignDetector detector = new StopSignDetector(stopSignModel);
detector.DetectStopSign(image, stopSignList, stopSignBoxList);
watch.Stop(); //stop the timer
SetMessage(String.Format("Detection time: {0} milli-seconds", watch.Elapsed.TotalMilliseconds));
foreach (Rectangle rect in stopSignBoxList)
{
CvInvoke.Rectangle(image, rect, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
SetImageBitmap(image.ToBitmap());
image.Dispose();
}
};
OnButtonClick += (sender, args) =>
{
PickImage("stop-sign.jpg");
};
}
