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C#-Emgu.CV-------视频截取和图像处理基础
转:http://blog.sciencenet.cn/blog-538909-694431.html
mage<Bgr, Byte> frame = capture.QueryFrame();//获取摄像头的视频帧
Image<Bgr, Byte> frame2 = frame.Convert<Bgr, Byte>(); //将帧转换为RGB类型,对应为三维数组
Image<Gray, Byte> grayFrame = frame.Convert<Gray, Byte>();//将帧转换为Gray类型,对应为一维数组
Image<Ycc, Byte> currentYCrCbFrame = frame.Convert<Ycc, Byte>();//将帧转换为YCbCr类型,对应为三维数组
Image<Gray, Byte> skin = new Image<Gray, Byte>(frame.Width, frame.Height);//构建灰度区域对象
int rows = frame.Rows;
int cols = frame.Cols;
Byte[, ,] bgrData= http://www.mamicode.com/frame2.Data;
for (int i = 0; i < rows; i++)
for (int j = 0; j < cols; j++)
{
b = bgrData[i, j, 0];
g = bgrData[i, j, 1];
r = bgrData[i, j, 2];
if (b < 110)
{
bgrData[i, j, 0] = (byte)0;
bgrData[i, j, 1] = (byte)0;
bgrData[i, j, 2] = (byte)0;
}
else //二值化
{
bgrData[i, j, 0] = (byte)255;
bgrData[i, j, 1] = (byte)255;
bgrData[i, j, 2] = (byte)255;
}
}
pictureBox1.Image = frame2.Flip(Emgu.CV.CvEnum.FLIP.NONE).ToBitmap(); //转换后,在picture上显示二值化图像。