C#使用Aforge调用摄像头拍照的方法
作者:Jichan·Jong 时间:2022-02-10 02:34:36
本文实例为大家分享了C#使用Aforge调用摄像头拍照的具体代码,供大家参考,具体内容如下
一、新建一个Winform项目
二、使用Nuget添加引用
安装下图中红色框住的两个程序包
安装完后发现安装了如下图的程序包,这是因为上述两个程序包存在对其它程序包的依赖。
三、编写程序
1.窗体设计,摄像头是下拉列表(cmbCamera,控件命名,下同),虽然示例只用到一个摄像头,但是该Demo可用于多个摄像头间切换场景,分辨率是下拉列表(cmbResolution),列出摄像头所支持的分辨率,一个VideoSourcePlayer控件(vispShoot),一个PictureBox控件(picbPreview)。
2.编写代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using AForge.Video.DirectShow;
namespace AforgeDemo
{
public partial class Form1 : Form
{
private FilterInfoCollection videoDevices;
private VideoCaptureDevice videoDevice;
private VideoCapabilities[] videoCapabilities;
private VideoCapabilities[] snapshotCapabilities;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoDevices.Count != 0)
{
foreach (FilterInfo device in videoDevices)
{
cmbCamera.Items.Add(device.Name);
}
}
else
{
cmbCamera.Items.Add("没有找到摄像头");
}
cmbCamera.SelectedIndex = 0;
}
private void cmbCamera_SelectedIndexChanged(object sender, EventArgs e)
{
if (videoDevices.Count != 0)
{
videoDevice = new VideoCaptureDevice(videoDevices[cmbCamera.SelectedIndex].MonikerString);
GetDeviceResolution(videoDevice);
}
}
private void GetDeviceResolution(VideoCaptureDevice videoCaptureDevice)
{
cmbResolution.Items.Clear();
videoCapabilities = videoCaptureDevice.VideoCapabilities;
foreach (VideoCapabilities capabilty in videoCapabilities)
{
cmbResolution.Items.Add($"{capabilty.FrameSize.Width} x {capabilty.FrameSize.Height}");
}
cmbResolution.SelectedIndex = 0;
}
private void btnConnect_Click(object sender, EventArgs e)
{
if (videoDevice != null)
{
if ((videoCapabilities != null) && (videoCapabilities.Length != 0))
{
videoDevice.VideoResolution = videoCapabilities[cmbResolution.SelectedIndex];
vispShoot.VideoSource = videoDevice;
vispShoot.Start();
EnableControlStatus(false);
}
}
}
private void EnableControlStatus(bool status)
{
cmbCamera.Enabled = status;
cmbResolution.Enabled = status;
btnConnect.Enabled = status;
btnShoot.Enabled = !status;
btnDisconnect.Enabled = !status;
}
private void btnDisconnect_Click(object sender, EventArgs e)
{
DisConnect();
EnableControlStatus(true);
}
private void DisConnect()
{
if (vispShoot.VideoSource != null)
{
vispShoot.SignalToStop();
vispShoot.WaitForStop();
vispShoot.VideoSource = null;
}
}
private void btnShoot_Click(object sender, EventArgs e)
{
Bitmap img = vispShoot.GetCurrentVideoFrame();
picbPreview.Image = img;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
DisConnect();
}
}
}
3.测试
附上窗体设计代码:
namespace AforgeDemo
{
partial class Form1
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要修改
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.cmbCamera = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.cmbResolution = new System.Windows.Forms.ComboBox();
this.vispShoot = new AForge.Controls.VideoSourcePlayer();
this.picbPreview = new System.Windows.Forms.PictureBox();
this.btnConnect = new System.Windows.Forms.Button();
this.btnDisconnect = new System.Windows.Forms.Button();
this.btnShoot = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.picbPreview)).BeginInit();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(39, 22);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(53, 12);
this.label1.TabIndex = 0;
this.label1.Text = "摄像头:";
//
// cmbCamera
//
this.cmbCamera.FormattingEnabled = true;
this.cmbCamera.Location = new System.Drawing.Point(98, 19);
this.cmbCamera.Name = "cmbCamera";
this.cmbCamera.Size = new System.Drawing.Size(113, 20);
this.cmbCamera.TabIndex = 1;
this.cmbCamera.SelectedIndexChanged += new System.EventHandler(this.cmbCamera_SelectedIndexChanged);
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(217, 22);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(53, 12);
this.label2.TabIndex = 0;
this.label2.Text = "分辨率:";
//
// cmbResolution
//
this.cmbResolution.FormattingEnabled = true;
this.cmbResolution.Location = new System.Drawing.Point(276, 19);
this.cmbResolution.Name = "cmbResolution";
this.cmbResolution.Size = new System.Drawing.Size(88, 20);
this.cmbResolution.TabIndex = 1;
//
// vispShoot
//
this.vispShoot.Location = new System.Drawing.Point(41, 54);
this.vispShoot.Name = "vispShoot";
this.vispShoot.Size = new System.Drawing.Size(591, 332);
this.vispShoot.TabIndex = 2;
this.vispShoot.Text = "videoSourcePlayer1";
this.vispShoot.VideoSource = null;
//
// picbPreview
//
this.picbPreview.Location = new System.Drawing.Point(41, 423);
this.picbPreview.Name = "picbPreview";
this.picbPreview.Size = new System.Drawing.Size(180, 175);
this.picbPreview.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
this.picbPreview.TabIndex = 3;
this.picbPreview.TabStop = false;
//
// btnConnect
//
this.btnConnect.Location = new System.Drawing.Point(382, 19);
this.btnConnect.Name = "btnConnect";
this.btnConnect.Size = new System.Drawing.Size(80, 23);
this.btnConnect.TabIndex = 4;
this.btnConnect.Text = "连接";
this.btnConnect.UseVisualStyleBackColor = true;
this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click);
//
// btnDisconnect
//
this.btnDisconnect.Enabled = false;
this.btnDisconnect.Location = new System.Drawing.Point(468, 19);
this.btnDisconnect.Name = "btnDisconnect";
this.btnDisconnect.Size = new System.Drawing.Size(80, 23);
this.btnDisconnect.TabIndex = 4;
this.btnDisconnect.Text = "断开";
this.btnDisconnect.UseVisualStyleBackColor = true;
this.btnDisconnect.Click += new System.EventHandler(this.btnDisconnect_Click);
//
// btnShoot
//
this.btnShoot.Enabled = false;
this.btnShoot.Location = new System.Drawing.Point(552, 19);
this.btnShoot.Name = "btnShoot";
this.btnShoot.Size = new System.Drawing.Size(80, 23);
this.btnShoot.TabIndex = 4;
this.btnShoot.Text = "拍照";
this.btnShoot.UseVisualStyleBackColor = true;
this.btnShoot.Click += new System.EventHandler(this.btnShoot_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(677, 610);
this.Controls.Add(this.btnShoot);
this.Controls.Add(this.btnDisconnect);
this.Controls.Add(this.btnConnect);
this.Controls.Add(this.picbPreview);
this.Controls.Add(this.vispShoot);
this.Controls.Add(this.cmbResolution);
this.Controls.Add(this.cmbCamera);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Form1";
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.picbPreview)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox cmbCamera;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ComboBox cmbResolution;
private AForge.Controls.VideoSourcePlayer vispShoot;
private System.Windows.Forms.PictureBox picbPreview;
private System.Windows.Forms.Button btnConnect;
private System.Windows.Forms.Button btnDisconnect;
private System.Windows.Forms.Button btnShoot;
}
}
来源:https://www.cnblogs.com/godbell/archive/2018/10/01/9734443.html
标签:C#,Aforge,摄像头
![](/images/zang.png)
![](/images/jiucuo.png)
猜你喜欢
DevExpress实现禁用TreeListNode CheckBox的方法
2022-07-20 22:17:43
![](https://img.aspxhome.com/file/2023/3/85663_0s.png)
JVM完全解读之GC日志记录分析
2022-09-22 12:43:08
![](https://img.aspxhome.com/file/2023/1/65751_0s.jpg)
Java实现仿淘宝滑动验证码研究代码详解
2022-12-28 00:51:11
![](https://img.aspxhome.com/file/2023/3/74893_0s.png)
Springboot 使用内置tomcat禁止不安全HTTP的方法
2022-07-12 10:45:45
Java实现获取客户端真实IP方法小结
2021-10-15 03:53:16
java 垃圾回收机制以及经典垃圾回收器详解
2022-07-06 05:16:08
![](https://img.aspxhome.com/file/2023/7/62067_0s.png)
Java设计模式之访问者模式使用场景及代码示例
2021-06-27 13:34:25
两分钟解决IntelliJ IDEA中文乱码问题(推荐)
2022-11-09 00:08:15
![](https://img.aspxhome.com/file/2023/8/85578_0s.png)
FeignClient中name和url属性的作用说明
2023-06-04 13:21:55
java应用占用内存过高排查的解决方案
2023-09-21 12:47:30
![](https://img.aspxhome.com/file/2023/4/77464_0s.jpg)
mvc开启gzip压缩示例分享
2022-05-03 08:34:29
spring mvc url匹配禁用后缀访问操作
2021-11-19 23:57:34
Java Swing JFrame窗口的实现
2021-11-30 12:03:37
![](https://img.aspxhome.com/file/2023/2/94222_0s.gif)
C#实现打字小游戏
2023-11-08 01:08:04
![](https://img.aspxhome.com/file/2023/2/88402_0s.jpg)
java swing实现简单的五子棋游戏
2022-04-16 22:10:10
![](https://img.aspxhome.com/file/2023/4/83124_0s.jpg)
你真的了解Java的多线程方法吗
2022-02-01 22:55:40
![](https://img.aspxhome.com/file/2023/4/69344_0s.png)
Android运行时权限终极方案(PermissionX)
2022-09-10 06:08:02
![](https://img.aspxhome.com/file/2023/6/89536_0s.png)
java模拟实现双向链表
2022-06-05 09:16:16
![](https://img.aspxhome.com/file/2023/2/62072_0s.jpg)
如何将写好的.py/.java程序变成.exe文件详解
2022-04-06 09:22:14
![](https://img.aspxhome.com/file/2023/1/70161_0s.png)
C#异步委托调用实例分析
2022-12-14 05:41:06