using AForge.Controls; using AForge.Video.DirectShow; using System; using System.ComponentModel; using System.Diagnostics; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.IO; using System.Net.NetworkInformation; using System.Text.RegularExpressions; using System.Threading; using System.Windows.Forms; using static System.Windows.Forms.VisualStyles.VisualStyleElement.Window; namespace photo { public partial class Photo_Form2 : Form { //250 350 private FilterInfoCollection videoDevices;//所有摄像设备 private VideoCaptureDevice videoDevice;//摄像设备 private VideoCapabilities[] videoCapabilities;//摄像头分辨率 public string img64 = ""; public int iActualHeight = 0;//视频流窗口高度 public int iActualWidth = 0;//视频流窗口宽度 //PaintEventArgs e11; public Photo_Form2() { this.StartPosition = FormStartPosition.CenterScreen;//居中显示 InitializeComponent(); Get_Shebei();//得到机器所有接入的摄像设备 Conn_Camera();//连接摄像头 } public void Get_Shebei() { //寻找设备的摄像头，检索分辨率 videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice); if (videoDevices.Count != 0)//读取到摄像设备 { foreach (FilterInfo device in videoDevices) { cboVideo.Items.Add(device.Name);//把摄像设备添加到摄像列表中 } } else { cboVideo.Items.Add("没有找到摄像头"); } cboVideo.SelectedIndex = 0; //默认选择第一个 if (videoDevices.Count != 0) //读取到摄像设备 { //获取摄像头 videoDevice = new VideoCaptureDevice(videoDevices[cboVideo.SelectedIndex].MonikerString); GetDeviceResolution(videoDevice); //获得摄像头的分辨率 } } //点击确定按钮 private void btn_queding_Click(object sender, EventArgs e) { DisConnect();//断开连接 EnableControlStatus(true); this.Close();//关闭窗体 } //点击拍照按钮 private void btn_paizhao_Click(object sender, EventArgs e) { try { if (videoSourcePlayer1 == null) { return; } else { while (true) { //i++; //创建图像对象 Bitmap img = videoSourcePlayer1.GetCurrentVideoFrame();//拍照 Bitmap imgbitmap = new Bitmap(img); //Image resizedImage = resizeImage(imgbitmap, new Size(640, 360));//250 350 Image resizedImage = resizeImage(imgbitmap, new Size(iActualWidth, iActualHeight)); //pictureBox2.Image = img; //保存 //string path = "C:\\PhotoList\\DengJi"; //if (!Directory.Exists(path)) //{ // Directory.CreateDirectory(path); //} //path += "\\" + DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg"; //img.Save(path, ImageFormat.Jpeg); ////计算图片多大 //int Img_Height = videoCapabilities[0].FrameSize.Height; //int Img_Width = videoCapabilities[0].FrameSize.Width; //Image originImage = Image.FromFile(path); //创建矩形对象表示原图上裁剪的矩形区域，这里相当于划定原图上坐标为(10, 10)处，50x50大小的矩形区域为裁剪区域 //Rectangle cropRegion = new Rectangle(255, 30, 400, 500); //Rectangle cropRegion = new Rectangle(250, 30, 180, 300); int iY = Convert.ToInt32(iActualHeight / 1.4); int iX = (iActualWidth - iY) / 2; Rectangle cropRegion = new Rectangle(iX, 0, iY, iActualHeight); //创建空白画布，大小为裁剪区域大小 Bitmap result = new Bitmap(cropRegion.Width, cropRegion.Height); //创建Graphics对象，并指定要在result（目标图片画布）上绘制图像 Graphics graphics = Graphics.FromImage(result); //使用Graphics对象把原图指定区域图像裁剪下来并填充进刚刚创建的空白画布 graphics.DrawImage(resizedImage, new Rectangle(0, 0, cropRegion.Width, cropRegion.Height), cropRegion, GraphicsUnit.Pixel); //这个时候裁剪区域图片就被填充进result对象中去了，可以对其进行保存 //string path12 = "C:\\PhotoList\\DengJi\\" + DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg"; //result.Save(path12, ImageFormat.Png); pictureBox1.Image = result; //返回前端 MemoryStream ms = new MemoryStream(); result.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); byte[] photo = ms.GetBuffer(); ms.Close(); //FileStream fs = new FileStream(path12, FileMode.Open, FileAccess.Read); //byte[] photo = new byte[fs.Length]; //fs.Read(photo, 0, photo.Length); //fs.Close(); img64 = Convert.ToBase64String(photo); img64 = "data:image/jpeg;base64," + img64; break; #region MyRegion ////原图片文件 //Image fromImage = Image.FromFile(fromImagePath); ////创建新图位图 //Bitmap bitmap = new Bitmap(width, height); ////创建作图区域 //Graphics graphic = Graphics.FromImage(bitmap); ////截取原图相应区域写入作图区 //graphic.DrawImage(fromImage, 0, 0, new Rectangle(offsetX, offsetY, width, height), GraphicsUnit.Pixel); ////从作图区生成新图 //Image saveImage = Image.FromHbitmap(bitmap.GetHbitmap()); ////保存图片 //saveImage.Save(toImagePath, ImageFormat.Png); ////释放资源 //saveImage.Dispose(); //graphic.Dispose(); //bitmap.Dispose(); #endregion } } } catch (Exception) { throw; } } public void Conn_Camera() { if (videoDevice != null)//如果摄像头不为空 { videoDevice.VideoResolution = videoCapabilities[comboBox2.SelectedIndex];//摄像头分辨率 videoSourcePlayer1.Size = new System.Drawing.Size(iActualWidth, iActualHeight);//保证画线时大小统一 videoSourcePlayer1.VideoSource = videoDevice;//把摄像头赋给控件 videoSourcePlayer1.Start();//开启摄像头 EnableControlStatus(false); } } //关闭并释放 private void DisConnect() { if (videoSourcePlayer1.VideoSource != null) { videoSourcePlayer1.SignalToStop(); videoSourcePlayer1.WaitForStop(); videoSourcePlayer1.VideoSource = null; } } //控件的显示切换 private void EnableControlStatus(bool status) { //cboVideo.Enabled = status; //pictureBox1.Enabled = status; //videoSourcePlayer1.Enabled = status; //videoSourcePlayer1.Enabled = !status; //btnCut.Enabled = !status; } //获得摄像头的分辨率 private void GetDeviceResolution(VideoCaptureDevice videoCaptureDevice) { comboBox2.Items.Clear();//清空列表 videoCapabilities = videoCaptureDevice.VideoCapabilities;//设备的摄像头分辨率数组 foreach (VideoCapabilities capabilty in videoCapabilities) { //把这个设备的所有分辨率添加到列表 comboBox2.Items.Add($"{capabilty.FrameSize.Width} x {capabilty.FrameSize.Height}"); } comboBox2.SelectedIndex = 0;//默认选择第一个 SetVideoSourcePlayer1Size(videoCapabilities[0].FrameSize.Width, videoCapabilities[0].FrameSize.Height); } //设置视频流窗口大小 private void SetVideoSourcePlayer1Size(int iWidth, int iHeight) { while (iWidth > 500) { iWidth = iWidth / 2; iHeight = iHeight / 2; } videoSourcePlayer1.Width = iWidth; videoSourcePlayer1.Height = iHeight; iActualWidth = iWidth; iActualHeight = iHeight; pictureBox1.Height = iActualHeight; pictureBox1.Width = Convert.ToInt32(iActualHeight / 1.4);//1寸照片 } public static Image resizeImage(Image imgToResize, Size size) { return (Image)(new Bitmap(imgToResize, size)); } public static void image(string Path1) { System.Drawing.Image img = System.Drawing.Image.FromFile(Path1); Bitmap bt = new Bitmap(img); //获取图片位置颜色 Color cl = bt.GetPixel(10, 10); int Width = img.Width; int Height = img.Height; int marginx = Height / 2; float dpiX = img.HorizontalResolution; float dpiY = img.VerticalResolution; //设置新图的大小 Bitmap bitmap = new Bitmap(Width, Width, PixelFormat.Format24bppRgb); //设置位图文件的水平和垂直分辨率，与Img一致 bitmap.SetResolution(dpiX, dpiY); //在位图文件上填充一个新图 Graphics graphics = Graphics.FromImage(bitmap); System.Drawing.Rectangle Rec = new System.Drawing.Rectangle(0, 0, Width, Width); //定义颜色 SolidBrush mySolidBrush = new SolidBrush(cl); //将新图填充为获取原图位置的颜色 graphics.FillRectangle(mySolidBrush, Rec); //向新图中填充Img graphics.DrawImage(img, 0, marginx, Rec, GraphicsUnit.Pixel); graphics.Dispose(); GC.Collect(); bitmap.Save("保存图片路径", System.Drawing.Imaging.ImageFormat.Jpeg); } private void videoSourcePlayer1_Paint(object sender, PaintEventArgs e) { ////画矩形 Graphics g1 = e.Graphics; Pen p2 = new Pen(Color.White, 2); p2.DashStyle = DashStyle.Dot; //g1.DrawRectangle(p2, 96, 0, 128, 180); //g1.DrawRectangle(p2, 124, 0, 178, 250); int iY = Convert.ToInt32(iActualHeight / 1.4); int iX = (iActualWidth - iY) / 2; g1.DrawRectangle(p2, iX, 0, iY, iActualHeight); /* Graphics g1 = e.Graphics; //使绘图质量最高，即消除锯齿 g1.SmoothingMode = SmoothingMode.AntiAlias; g1.InterpolationMode = InterpolationMode.HighQualityBicubic; g1.CompositingQuality = CompositingQuality.HighQuality; Pen p = new Pen(Color.Blue, 1);//定义笔的颜色为蓝色，大小为2 Brush fillBrush = new SolidBrush(Color.White); ////画直线 //g1.DrawLine(p, 200, 10, 300, 10);//在画板上画直线,起始坐标为(10,10),终点坐标为(100,100) ////画虚线 Pen px = new Pen(Color.White, 2);//定义笔的颜色为蓝色，大小为2 px.DashStyle = DashStyle.Dot;//定义虚线的样式为点 //g1.DrawLine(px, 200, 20, 300, 20); ////自定义虚线 //Pen pd = new Pen(Color.Black, 5);//定义笔的颜色为蓝色，大小为2 //pd.DashPattern = new float[] { 2, 1 };//设置短划线和空白部分的数组 //g1.DrawLine(pd, 200, 30, 300, 30); ////画箭头,只对不封闭曲线有用 //pd.DashStyle = DashStyle.Solid;//恢复实线 //pd.EndCap = LineCap.ArrowAnchor;//定义线尾的样式为箭头 //g1.DrawLine(pd, 200, 50, 300, 50); //画圆 g1.DrawEllipse(px, 140, 40, 140, 140);//与椭圆相贴的矩形的坐标，椭圆的长轴，椭圆的短轴*/ //单色填充圆 //g1.FillEllipse(fillBrush, 100, 40, 140, 140); ////画矩形 //Pen p2 = new Pen(Color.Yellow, 4); //g1.DrawRectangle(p2, 0, 310, 100, 100); ////用渐变色填充 //Rectangle rect = new Rectangle(300, 60, 50, 50);//定义矩形,参数为起点横纵坐标以及其长和宽 //rect.Location = new Point(330, 20); //LinearGradientBrush b3 = new LinearGradientBrush(rect, Color.Yellow, Color.Black, LinearGradientMode.Horizontal); //g1.FillRectangle(b3, rect); ////用图片填充 ////TextureBrush b2 = new TextureBrush(Image.FromFile(@"e:\picture\1.jpg")); ////rect.Location = new Point(10, 70);//更改这个矩形的起点坐标 ////rect.Width = 200;//更改这个矩形的宽来 ////rect.Height = 200;//更改这个矩形的高 ////g1.FillRectangle(b2, rect); ////绘制字符串 //g1.DrawString("绘制文字", new Font("微软雅黑", 10), fillBrush, new PointF(130, 10)); ////画多边形 //Point[] pg = { new Point(0, 76), // new Point(80, 76), // new Point(106, 0), // new Point(130, 76), // new Point(210, 76), // new Point(146, 124), // new Point(170, 200), // new Point(106, 152), // new Point(40, 200), // new Point(66, 124), //}; //g1.DrawPolygon(p, pg); ////画三维饼状图 //int width = 200; //int height = 100; //int x = 440; //int y = 20; //Rectangle r = new Rectangle(x, y, width, height); //Pen p3 = new Pen(Color.Gray); //for (int i = y; i < 3 * y; i++) //{ // Rectangle tempR = new Rectangle(x, i, width, height); // g1.DrawEllipse(p3, tempR); //} //Brush b = new SolidBrush(Color.Gainsboro); //g1.FillPie(b, r, 0, 360);//笔刷，基础矩形，扫过的角 //b = new SolidBrush(Color.Blue); //g1.FillPie(b, r, 60, 150); //b = new SolidBrush(Color.Yellow); //g1.FillPie(b, r, 210, 150);//从210°开始掠过150度 //Bitmap image = new Bitmap(500, 500); //Graphics g = Graphics.FromImage(image); //g.DrawEllipse(p, 200, 90, 100, 100);//与椭圆相贴的矩形的坐标，椭圆的长轴，椭圆的短轴 ////单色填充圆 //g.FillEllipse(fillBrush, 200, 90, 100, 100); ////image.Save(@"c:\1.jpg"); #region 显示 //pictureBox1.Image = (Image)image; //pictureBox1.Image.Save(@"c:\1.jpg"); //pictureBox1.Show(); #endregion //g1.Dispose();//释放由Graphics使用的资源 //p.Dispose(); } #region //protected override void OnPaint(PaintEventArgs e) //{ // base.OnPaint(e); // int width = this.Width; // int height = this.Height; // int radius = width < height ? width : height;//以最短的边最为圆的直径 // Graphics graphics = this.CreateGraphics(); // //graphics.Clear( Color .FromArgb (255,240,240,240) ); // Rectangle rectangle = new Rectangle(0, 0, radius, radius); // graphics.SmoothingMode = SmoothingMode.AntiAlias;//消除锯齿 // Brush brush = new SolidBrush(Color.Blue);//指定画刷的颜色 // graphics.FillEllipse(brush, new Rectangle(0, 0, radius, radius));//填充一个圆 // Pen pen = new Pen(Color.Black, 2);//指定画笔的颜色和线宽 // graphics.DrawEllipse(pen, rectangle);//绘制圆的边界 // string text = this.Text; // brush = new SolidBrush(Color.Black);//指定画刷画文本的颜色 // Font font = this.Font; // StringFormat sf = new StringFormat(); // sf.Alignment = StringAlignment.Center;//字符水平对齐方式 // sf.LineAlignment = StringAlignment.Center;//字符垂直对齐方式 // graphics.DrawString(text, font, brush, new RectangleF(0, 0, radius, radius), sf); // #region 使控件的单击事件只在圆内触发，而不是在矩形控件范围内触发，消除在圆外和控件内的区域响应单机事件的bug // System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath(); // path.AddEllipse(0, 0, radius, radius); // this.Region = new Region(path); // #endregion // //font.Dispose();//当控件的size改变时，如果调用了 font.Dispose()，那么font.Height会报异常，因为没有重新实例化font类，导致DrawString会报参数无效，所以也可以不调用font.dispose，这样就可以不用捕获异常了 // brush.Dispose(); // pen.Dispose(); // graphics.Dispose(); //} #endregion //点击关闭按钮时触发此函数。 //This event happened when the user closing the main form. private void MainForm_Closing(object sender, CancelEventArgs e) { DisConnect();//断开连接 } private void Photo_Form2_Load(object sender, EventArgs e) { //regist the form closing event. //注册窗体关闭事件。 this.FormClosing += new FormClosingEventHandler(MainForm_Closing); } //------2023-10-19 xulu 添加上传图片功能------- private Thread invokeThread; private OpenFileDialog openFileDialog1; private DialogResult result; private void button1_Click(object sender, EventArgs e) { openFileDialog1 = new OpenFileDialog(); openFileDialog1.Filter = "图片文件(*.jpg,*.png)|*.jpg;*.png"; invokeThread = new Thread(new ThreadStart(InvokeMethod)); invokeThread.SetApartmentState(ApartmentState.STA); invokeThread.Start(); invokeThread.Join(); if (result == DialogResult.OK) { if (openFileDialog1.FileName != "") { string file = openFileDialog1.FileName;//文件夹路径 string path = file.Substring(file.LastIndexOf("\\") + 1); //格式化处理，提取文件名 //File.Copy(file, Application.StartupPath + "\\cai\\" + lujin, false); //复制到的目录切记要加文件名！！！ //PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage; //使图像拉伸或收缩，以适合PictureBox this.pictureBox1.ImageLocation = file; //返回前端 Bitmap bmp = new Bitmap(file); MemoryStream ms = new MemoryStream(); bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); byte[] arr = new byte[ms.Length]; ms.Position = 0; ms.Read(arr, 0, (int)ms.Length); ms.Close(); string base64string = Convert.ToBase64String(arr); img64 = "data:image/jpeg;base64," + base64string; } } } private void InvokeMethod() { result = openFileDialog1.ShowDialog(); } //----------------------------------------------------- } }