用Emgu捕获图像-黑色图像 [英] Capturing an image with Emgu - black image

问题描述

我是emgu cv的新手，对于一个大型项目，我试图从网络摄像头捕获图像并将其显示在图像框中，但显示的是黑色图像。

I'm a newbie in emgu cv and for a major project I'm trying to capture an image from a webcam and show it in an image box, but it's showing a black image.

以下代码有什么问题？

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Emgu.CV;
using Emgu.CV.Structure;
using Emgu.CV.UI;
using Emgu.Util;

namespace WindowsFormsApplication7
{
    public partial class Form1 : Form
    {
        private Capture capture;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            if (capture == null)
               capture = new Capture();
            Image<Bgr,Byte> img=capture.QueryFrame();
            imageBox1.Image = img;                 
        }
    }
}

推荐答案

就我而言，卡巴斯基反病毒软件阻止了对我网络摄像头的访问。更改了一些安全设置后，我得以重新启动emgu捕获。

In my case Kaspersky AntiVirus was blocking the access to my webcam. After changing some security settings I was able to get emgu capture back working.

这篇关于用Emgu捕获图像-黑色图像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！