Basler area scan camera wrapper
Use this C++/CLI wrapper with Basler cameras for .NET Core projects
Table of Contents
Usage
Import CoreCamera class:
using CoreCamera;Initialize camera object and set camera parameters:
private ICameraCore _camera;
public void Initialize()
{
AppDomain.CurrentDomain.ProcessExit += new EventHandler(CurrentDomain_ProcessExit);
_camera = new CameraCore("Front1", ImageArrived);
_camera.SetExposure(10000);
_camera.SetHeight(1000);
_camera.SetWidth(1000);
_camera.SetGain(200);
_camera.UpdateSettings();
_camera.Grab();
}Create action for image arrived event:
public void ImageArrived(byte[] bytes, int height, int width)
{
Mat img = new Mat(height, width, DepthType.Cv8U, 1);
img.SetTo(bytes);
Console.WriteLine("Saving test image");
CvInvoke.Imwrite("test.jpg", img);
_camera.StopGrab();
} Blazor
You can use this library with Blazor
Add this code to your page:
@page "/"
@using System.IO
@using BlazorAppCamera.Data
@inject CameraService CameraService
<h1>Camera test</h1>
<button class="btn btn-primary" @onclick="GetFrame">Get image</button>
<img src="@_imageString" alt="Image">
@code
{
private string _imageString = null;
public void GetFrame()
{
CameraService.StartGrab(ImageArrived);
}
void ImageArrived(byte[] bytes)
{
_imageString = $"data:image/png;base64,{Convert.ToBase64String(bytes)}";
}
}Create Camera Service:
using System;
using CoreCamera;
namespace BlazorAppCamera.Data
{
public class CameraService
{
private readonly ICameraCore _camera;
private Action<byte[]> _action;
public CameraService()
{
_camera = new CameraCore("Front1", ImageArrived);
}
public void ImageArrived(byte[] bytes, int height, int width)
{
_action.Invoke(bytes);
}
public void StartGrab(Action<byte[]> action)
{
_action = action;
_camera.SetExposure(50000);
_camera.SetHeight(1000);
_camera.SetWidth(1000);
_camera.UpdateSettings();
_camera.Grab();
}
}
}