Color Detection part 1: ตรวจหาสีผิวมนุษย์ (Skin Detection)

private void process()
        {
            Image<Bgr,byte> cameraImage;
            cameraImage = capture.QueryFrame(); //input image
            Image<Hsv,byte> hsvImage = cameraImage.Convert<Hsv ,byte>(); //Convert RGB > HSV.
            if (cameraImage != null)
            {
                Image<Gray ,Byte> ResultImage = new Image<Gray ,Byte>(hsvImage.Width, hsvImage.Height); //Create result image.
                Image<Gray ,Byte> IlowCh0 = new Image<Gray ,Byte>(hsvImage.Width, hsvImage.Height, new Gray(0)); //Define low range(0).
                Image<Gray ,Byte> IHiCh0 = new Image<Gray ,Byte>(hsvImage.Width, hsvImage.Height, new Gray(20)); //Define high range(20).

                CvInvoke.cvInRange(hsvImage[0], IlowCh0, IHiCh0, ResultImage); //Use cvinrange() method and hsvImage[0] = hsvimage channel 0

                CvInvoke.cvErode(ResultImage, ResultImage, (IntPtr)null, 3);  //Morphorogy erosion.
                CvInvoke.cvDilate(ResultImage, ResultImage, (IntPtr)null, 4); //Morphorogy dilation.

                pbShowCamera1.Image = cameraImage.ToBitmap();  //show input image in picturebox.
                CvInvoke.cvShowImage("show result", ResultImage); // show output image in a new windows.
            }