Basler Pylon 简单抓图

简单抓图步骤：

• StartGrabbing 开始抓取，状态 isGrabbing
• RetrieveResult 接收数据，完成后触发 StopGrabbing
• 数据由 CGrabResultPtr 指针接收，状态 GrabSucceeded
• runtime 由 PylonInitialize 初始化，并由 PylonTerminate 销毁

具体代码如下：

 Step0：初始化 Pylonruntime

    // Before using any pylon methods, the pylon runtime must be initialized.
    PylonInitialize();
    //Pylon::PylonAutoInitTerm autoInitTerm;

 

Step1: 创建 Camera 实例

        // Create an instant camera object with the camera device found first.
        IPylonDevice *pDevice = CTlFactory::GetInstance().CreateFirstDevice();
        CInstantCamera camera;
        camera.Attach(pDevice);

 

Name of Class	Usable for Device Type	Device-specific
Pylon::CInstantCamera (recommended)	All cameras	No
Pylon::CBaslerUniversalInstantCamera (recommended for novice users)	All cameras	No
Pylon::CBasler1394InstantCamera	IIDC 1394 compliant cameras	Yes
Pylon::CBaslerGigEInstantCamera	GigE Vision compliant cameras	Yes
Pylon::CBaslerUsbInstantCamera	USB3 Vision compliant cameras	Yes
Pylon::CBaslerCameraLinkInstantCamera	Camera Link compliant cameras	Yes

 

step2：开始抓取

        // Start the grabbing of 1 images.
        // The camera device is parameterized with a default configuration which
        // sets up free-running continuous acquisition.
        camera.StartGrabbing(1);

 

step3：构造智能指针接收抓取数据

        // This smart pointer will receive the grab result data.
        CGrabResultPtr ptrGrabResult;

 

step4：判断抓取状态，并接收数据

        // Camera.StopGrabbing() is called automatically by the RetrieveResult() method
        // when c_countOfImagesToGrab images have been retrieved.
        int flag = 0;
        while ( camera.IsGrabbing())
        {
            // Wait for an image and then retrieve it. A timeout of 5000 ms is used.
            camera.RetrieveResult( 5000, ptrGrabResult, TimeoutHandling_ThrowException);

 

step5：判断抓取结果，并处理

            // Image grabbed successfully?
            if (ptrGrabResult->GrabSucceeded())
            {
                // Access the image data.
                cout << "SizeX: " << ptrGrabResult->GetWidth() << endl;
                cout << "SizeY: " << ptrGrabResult->GetHeight() << endl;
                const uint8_t *pImageBuffer = (uint8_t *) ptrGrabResult->GetBuffer();

 

step6：释放 plyon runtime

    // Releases all pylon resources.
    PylonTerminate();

 

调试时，相机意外中断，连不上的处理

The device is controlled by another application. Err: An attempt was made to access an address location which is currently/momentary not accessible. (0xE1018006)

设置环境变量 PYLON_GIGE_HEARTBEAT =1000 即可。