1,首先要安装OpenCvSharp,使用cv2的函数获取设备,并将图像转换到Bitmap using OpenCvSharp; using OpenCvSharp.Extensions; void run_cap() { Mat src = new Mat(); FrameSource frame = Cv2.CreateFrameSource_Camera(0); while (f
1,首先要安装OpenCvSharp,使用cv2的函数获取设备,并将图像转换到Bitmap
using OpenCvSharp; using OpenCvSharp.Extensions; void run_cap() { Mat src = new Mat(); FrameSource frame = Cv2.CreateFrameSource_Camera(0); while (f1) { frame.NextFrame(src); Bitmap bitmap = BitmapConverter.ToBitmap(src); Invalidate(); pictureBox1.Invalidate(); imgshow = bitmap; } }
2,在调用时开启线程,可以在主函数内调用,也可在按钮内调用
private void button1_Click(object sender, EventArgs e) { // Image imgshow0 = Image.FromFile("src.jpg"); // pictureBox1.Image = imgshow0; Thread threadA = new Thread(run_cap); threadA.Start(); }
3,在form框架调用重绘函数将每一帧重绘到pictureBox1
this.pictureBox1.Paint += PictureBox1_Paint;
4,函数如下:
private void PictureBox1_Paint(object sender, PaintEventArgs e) { if (f) { Invalidate();pictureBox1.Invalidate(); e.Graphics.DrawImage(imgshow,0,0); } }
5,运行如下:
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