面对截图 [英] Face screenshot

问题描述

嘿那里！

Hey there!

有没有人知道如何捕获面部并制作快照并将其保存到位图???

Does anyone have any idea how to capture the face and make its snapshot and save it to bitmap???

我已经阅读了关于制作屏幕截图的文章，但我仍然不知道如何保存特定区域作为图像数据...

I already read the article about making screenshots, but I still have no idea how to save a specific area as image data...

如果有人可以帮助我，我会很感激。

I would appreciate that if someone could help me.

推荐答案

Open CV调用Emgu有一个包装器

There is a wrapper for the Open CV call Emgu

这些库包含3引用（Emgu.CV，Emgu.CV.UI，Emgu.Util）

these library is contains 3 references (Emgu.CV, Emgu.CV.UI, Emgu.Util)

你可以使用这些库轻松工作

you can work and get the face easily with these libraries

下载此处

并运行以下代码样本

using (HaarCascade face = new HaarCascade(faceFileName))
{
  var frame = _kinectSensor.ColorStream.OpenNextFrame(100);
  var image = frame.ToOpenCVImage<Rgb, Byte>();
  using (Image<Gray, Byte> gray = image.Convert<Gray, Byte>()) //Convert it to Grayscale
  {
    gray._EqualizeHist();
    MCvAvgComp[] facesDetected = face.Detect(
                       gray,
                       1.1,
                       10,
Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING,
                       new System.Drawing.Size(20, 20));
    foreach (MCvAvgComp f in facesDetected)
    {
      var rect = new System.Drawing.Rectangle(f.rect.X - f.rect.Width / 2
                            , f.rect.Y - f.rect.Height / 2
                            , f.rect.Width * 2
                            , f.rect.Height * 2);
                        image.Draw(f.rect, new Rgb(System.Drawing.Color.Blue), 2);
    }
    Dispatcher.BeginInvoke(new Action(() => { yourImage.Source = image.ToBitmapSource(); }));
  }
}

这篇关于面对截图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！