Take a picture from IP Camera

Question

How to take a picture snapshot and save it as .jpg in C# from IP Camera

Derek Stevens · Answer

There are a number of different ways you can do this. If you are looking for an SDK for this, such as the Leadtools Multimedia toolkit, (www.leadtools.com), you can manually capture a specific frame with no video feed, capture a single frame from the video as it is playing, or use a callback filter, which will let you access each frame as it runs in order to modify the image before it is displayed or to save it to a file. Here's a snippet from their documentation (https://www.leadtools.com/help/sdk/v21/dh/multimedia/mm/capturectrl-captureimage.html): try { // set the video capture device, use your capture device name here if (capturectrl.VideoDevices[ "USB" ] == null ) throw new Exception( "No USB video device available" ); capturectrl.VideoDevices[ "USB" ].Selected = true ; // capture the image Image image = capturectrl.CaptureImage(); if (image != null ) image.Save(outFile, ImageFormat.Jpeg); // stop the capture capturectrl.StopCapture(); // check for the capture file and set the result if (File.Exists(Path.Combine(Directory.GetCurrentDirectory(), outFile))) _result = true ; } catch (Exception) { _result = false ; }

Rajanikant Hawaldar · Answer

Hello Piyush, I tried it long back using window forms and its working perfect check below code and in form add PictureBox, two Button controls. // Important: include the opencvsharp library in your code using OpenCvSharp; using OpenCvSharp.Extensions; using System; using System.Drawing; using System.Drawing.Imaging; using System.Threading; using System.Windows.Forms; namespace TakePhoto { public partial class Form1 : Form { // Create class-level accesible variables VideoCapture capture; Mat frame; Bitmap image; private Thread camera; bool isCameraRunning = false ; // Declare required methods private void CaptureCamera() { camera = new Thread( new ThreadStart(CaptureCameraCallback)); camera.Start(); } private void CaptureCameraCallback() { frame = new Mat(); capture = new VideoCapture(0); capture.Open(0); if (capture.IsOpened()) { while (isCameraRunning) { capture.Read(frame); image = BitmapConverter.ToBitmap(frame); if (pictureBox1.Image != null ) { pictureBox1.Image.Dispose(); } pictureBox1.Image = image; } } } public Form1() { InitializeComponent(); } // When the user clicks on the start/stop button, start or release the camera and setup flags private void button1_Click( object sender, EventArgs e) { if (button1.Text.Equals( "Start" )) { CaptureCamera(); button1.Text = "Stop" ; isCameraRunning = true ; } else { capture.Release(); button1.Text = "Start" ; isCameraRunning = false ; } } // When the user clicks on take snapshot, the image that is displayed in the pictureBox will be saved in your computer private void button2_Click( object sender, EventArgs e) { if (isCameraRunning) { // Take snapshot of the current image generate by OpenCV in the Picture Box Bitmap snapshot = new Bitmap(pictureBox1.Image); // Save in some directory // in this example, we'll generate a random filename e.g 47059681-95ed-4e95-9b50-320092a3d652.png snapshot.Save( string .Format(@ "D:\Mobile\dumy\{0}.Jpeg" , Guid.NewGuid()), ImageFormat.Jpeg); } else { Console.WriteLine( "Cannot take picture if the camera isn't capturing image!" ); } } } }

Salman Beg · Answer

Check this link, https://www.camera-sdk.com/p_6553-how-to-take-a-picture-snapshot-and-save-it-as-.jpg-in-c-.html https://www.codeproject.com/Articles/829261/How-to-create-ONVIF-IP-camera-snapshot-as-a-JPG-im

Take a picture from IP Camera

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