合并图像处理库,删除图像lib库
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# XP.Camera 使用说明
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基于 .NET 8 WPF 的工业相机控制类库,采用工厂模式 + 统一接口设计,支持多品牌相机扩展。当前已实现 Basler pylon SDK 驱动。
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## 环境要求
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- .NET 8 SDK
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- Windows 操作系统
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- Basler pylon 8 SDK(已安装并配置环境变量)
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## 项目结构
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```
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XP.Camera/
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├── ICameraController.cs # 控制器接口 + 工厂接口
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├── CameraFactory.cs # 统一工厂(根据品牌创建控制器)
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├── BaslerCameraController.cs # Basler 实现
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├── CameraModels.cs # CameraInfo、ImageGrabbedEventArgs、GrabErrorEventArgs
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├── CameraExceptions.cs # CameraException、ConnectionLostException、DeviceNotFoundException
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├── PixelConverter.cs # 像素数据 → WPF BitmapSource 转换工具
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└── XP.Camera.csproj
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```
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所有类型统一在 `XP.Camera` 命名空间下。
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## 项目引用
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```xml
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<ProjectReference Include="..\XP.Camera\XP.Camera.csproj" />
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```
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## 快速开始
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### 1. 通过工厂创建控制器
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```csharp
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using XP.Camera;
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ICameraFactory factory = new CameraFactory();
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using ICameraController camera = factory.CreateController("Basler");
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CameraInfo info = camera.Open();
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Console.WriteLine($"已连接: {info.ModelName} (SN: {info.SerialNumber})");
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```
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### 2. 依赖注入方式(推荐)
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在 Prism / DI 容器中注册:
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```csharp
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// App.xaml.cs
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var config = AppConfig.Load();
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containerRegistry.RegisterSingleton<ICameraFactory, CameraFactory>();
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containerRegistry.RegisterSingleton<ICameraController>(() =>
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new CameraFactory().CreateController(config.CameraType));
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```
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ViewModel 中注入使用:
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```csharp
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public class MyViewModel
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{
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private readonly ICameraController _camera;
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public MyViewModel(ICameraController camera)
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{
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_camera = camera;
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}
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}
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```
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相机品牌通过配置文件 `config.json` 指定:
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```json
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{
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"CameraType": "Basler"
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}
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```
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### 3. 实时图像显示(WPF 绑定)
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```csharp
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_camera.ImageGrabbed += (s, e) =>
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{
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// PixelConverter 返回已 Freeze 的 BitmapSource,可跨线程传递
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var bitmap = PixelConverter.ToBitmapSource(
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e.PixelData, e.Width, e.Height, e.PixelFormat);
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Application.Current.Dispatcher.Invoke(() =>
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{
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CameraImageSource = bitmap;
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});
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};
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```
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XAML 绑定:
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```xml
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<Image Source="{Binding CameraImageSource}" Stretch="Uniform" />
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```
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### 4. 软件触发采集流程
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```csharp
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camera.Open();
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camera.SetExposureTime(10000); // 10ms
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camera.StartGrabbing();
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// 每次需要采集时调用(结果通过 ImageGrabbed 事件返回)
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camera.ExecuteSoftwareTrigger();
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camera.StopGrabbing();
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camera.Close();
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```
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### 5. 实时连续采集(链式触发)
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收到上一帧后立即触发下一帧,自动适配任何帧率:
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```csharp
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private volatile bool _liveViewRunning;
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_camera.ImageGrabbed += (s, e) =>
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{
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var bitmap = PixelConverter.ToBitmapSource(e.PixelData, e.Width, e.Height, e.PixelFormat);
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Application.Current.Dispatcher.Invoke(() => CameraImageSource = bitmap);
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if (_liveViewRunning)
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_camera.ExecuteSoftwareTrigger(); // 链式触发下一帧
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};
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// 启动实时
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_camera.StartGrabbing();
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_liveViewRunning = true;
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_camera.ExecuteSoftwareTrigger(); // 触发第一帧
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// 停止实时
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_liveViewRunning = false;
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```
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## 核心接口
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### ICameraController
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| 方法 | 说明 |
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|------|------|
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| `Open()` | 打开连接,返回 `CameraInfo` |
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| `Close()` | 关闭连接(自动停止采集) |
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| `StartGrabbing()` | 以软件触发模式启动采集 |
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| `ExecuteSoftwareTrigger()` | 触发一帧采集 |
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| `StopGrabbing()` | 停止采集 |
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### 参数读写
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| 方法 | 说明 |
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|------|------|
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| `Get/SetExposureTime(double)` | 曝光时间(微秒) |
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| `Get/SetGain(double)` | 增益值 |
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| `Get/SetWidth(int)` | 图像宽度(自动校正到有效值) |
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| `Get/SetHeight(int)` | 图像高度(自动校正到有效值) |
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| `Get/SetPixelFormat(string)` | 像素格式(Mono8 / BGR8 / BGRA8) |
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### ICameraFactory
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| 方法 | 说明 |
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|------|------|
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| `CreateController(string cameraType)` | 根据品牌名创建控制器 |
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当前支持的 `cameraType` 值:`"Basler"`
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## 事件
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| 事件 | 说明 | 触发线程 |
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|------|------|----------|
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| `ImageGrabbed` | 成功采集一帧图像 | StreamGrabber 回调线程 |
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| `GrabError` | 图像采集失败 | StreamGrabber 回调线程 |
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| `ConnectionLost` | 相机连接意外断开 | pylon SDK 事件线程 |
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> 所有事件均在非 UI 线程触发。更新 WPF 界面时需通过 `Dispatcher.Invoke` 调度。
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> `PixelConverter.ToBitmapSource()` 返回的 BitmapSource 已调用 `Freeze()`,可直接跨线程传递。
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## 异常处理
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```csharp
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try
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{
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camera.Open();
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}
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catch (DeviceNotFoundException)
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{
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// 无可用相机设备
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}
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catch (CameraException ex)
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{
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// 其他相机错误,ex.InnerException 包含原始 SDK 异常
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}
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```
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| 异常类型 | 场景 |
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|---------|------|
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| `DeviceNotFoundException` | 无可用相机 |
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| `ConnectionLostException` | 相机物理断开 |
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| `CameraException` | SDK 操作失败(基类) |
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| `InvalidOperationException` | 未连接时访问参数,未采集时触发 |
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| `TimeoutException` | 软件触发等待超时 |
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## 扩展其他品牌相机
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1. 实现 `ICameraController` 接口:
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```csharp
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public class HikvisionCameraController : ICameraController
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{
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// 实现所有接口方法...
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}
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```
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2. 在 `CameraFactory.cs` 中注册:
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```csharp
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public ICameraController CreateController(string cameraType)
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{
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return cameraType switch
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{
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"Basler" => new BaslerCameraController(),
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"Hikvision" => new HikvisionCameraController(),
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_ => throw new NotSupportedException($"不支持的相机品牌: {cameraType}")
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};
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}
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```
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3. 配置文件切换品牌即可,业务代码无需修改。
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## 线程安全
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- 所有公共方法(Open / Close / StartGrabbing / StopGrabbing / ExecuteSoftwareTrigger / 参数读写)均线程安全
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- 事件回调不持有内部锁,不会导致死锁
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- `Open()` / `Close()` 幂等,重复调用安全
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## 日志
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使用 Serilog 静态 API(`Log.ForContext<T>()`),与宿主应用共享同一个日志管道。宿主应用只需在启动时配置 `Log.Logger` 即可。
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