相机拍照程序（PointGrey相机）

#include "pcamera.h" PCamera::PCamera() { } bool PCamera::ConnectToCamera(unsigned int camFlag) { BusManager busMgr; unsigned int numCameras; m_Error = busMgr.GetNumOfCameras(&numCameras); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } if (numCameras < 1) { printf("Insufficient number of cameras... exiting\n"); return -1; } // Connect to a camera PGRGuid guid; m_Error = busMgr.GetCameraFromIndex(camFlag, &guid); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } m_Error = m_Cam.Connect(&guid); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } //check the permission of current directory FILE* tempFile = fopen("test.txt", "w+"); if (tempFile == NULL) { printf("Failed to create file in current folder. Please check permissions.\n"); return -1; } fclose(tempFile); remove("test.txt"); // Get the camera information CameraInfo camInfo; m_Error = m_Cam.GetCameraInfo(&camInfo); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } PrintCameraInfo(&camInfo); // Check for external trigger support TriggerModeInfo triggerModeInfo; m_Error = m_Cam.GetTriggerModeInfo(&triggerModeInfo); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } if (triggerModeInfo.present != true) { printf("Camera does not support external trigger! Exiting...\n"); return -1; } // Get current trigger settings m_Error = m_Cam.GetTriggerMode(&m_TriggerMode); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } // Set camera to trigger mode m_TriggerMode.onOff = true; m_TriggerMode.mode = 14; m_TriggerMode.parameter = 0; m_TriggerMode.source = 0; // Triggering the camera externally using source m_TriggerMode.polarity = 1; // Specifies the trigger signal polarity as an active high (rising edge) signal m_Error = m_Cam.SetTriggerMode(&m_TriggerMode); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } // Get the camera configuration FC2Config config; m_Error = m_Cam.GetConfiguration(&config); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } // Camera is ready, start capturing images ////////////////初始化相机参数///////////////////////// //关闭相机自动曝光 Property prop; //Declare a Property struct. prop.type = SHUTTER; //Define the property to adjust. prop.onOff = true; //Ensure the property is on. prop.autoManualMode = false; //Ensure auto-adjust mode is off. prop.absControl = true; //Ensure the property is set up to use absolute value control. prop.absValue = 3; //Set the absolute value. m_Error = m_Cam.SetProperty(&prop); //Set the property. if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } //关掉自动增益模式 prop.type = GAIN; //Define the property to adjust. prop.onOff = true; //Ensure the property is on. prop.autoManualMode = false; //Ensure auto-adjust mode is off. m_Error = m_Cam.SetProperty(&prop); //Set the property. if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } prop.type = BRIGHTNESS; //Define the property to adjust. prop.onOff = true; //Ensure the property is on. prop.autoManualMode = false; //Ensure auto-adjust mode is off. m_Error = m_Cam.SetProperty(&prop); //Set the property. if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } //相机开始拍摄 m_Error = m_Cam.StartCapture(); if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } return true; } bool PCamera::DisconnectCamera() { printf( "\nStopping grabbing images...\n" ); // Turn trigger mode off. m_TriggerMode.onOff = false; m_Error = m_Cam.SetTriggerMode( &m_TriggerMode ); if (m_Error != PGRERROR_OK) { PrintError( m_Error ); return -1; } // Stop capturing images m_Error = m_Cam.StopCapture(); if (m_Error != PGRERROR_OK) { PrintError( m_Error ); return -1; } // Disconnect the camera m_Error = m_Cam.Disconnect(); if (m_Error != PGRERROR_OK) { PrintError( m_Error ); return -1; } return 1; } void PCamera::PrintError( Error error ) { error.PrintErrorTrace(); } void PCamera::PrintCameraInfo( CameraInfo* pCamInfo ) { printf( "\n*** CAMERA INFORMATION ***\n" "Serial number - %u\n" "Camera model - %s\n" "Camera vendor - %s\n" "Sensor - %s\n" "Resolution - %s\n" "Firmware version - %s\n" "Firmware build time - %s\n\n", pCamInfo->serialNumber, pCamInfo->modelName, pCamInfo->vendorName, pCamInfo->sensorInfo, pCamInfo->sensorResolution, pCamInfo->firmwareVersion, pCamInfo->firmwareBuildTime ); } bool PCamera::FireSoftwareTrigger( Camera* pCam ) { const unsigned int k_softwareTrigger = 0x62C; const unsigned int k_fireVal = 0x80000000; Error m_Error; m_Error = pCam->WriteRegister( k_softwareTrigger, k_fireVal ); if (m_Error != PGRERROR_OK) { PrintError( m_Error ); return false; } return true; } void PCamera::GrabAPicture(Image& pgImage) { // Fire software trigger bool retVal = FireSoftwareTrigger( &m_Cam ); if ( !retVal ) { printf("\nError firing software trigger!\n"); return; } // Retrieve an image m_Error = m_Cam.RetrieveBuffer( &pgImage ); if (m_Error != PGRERROR_OK) { PrintError( m_Error ); return; } return; } bool PCamera::SetExposureTime(float ms) { // Setting shutter exposure time Property prop; //Declare a Property struct. prop.type = SHUTTER; //Define the property to adjust. prop.onOff = true; //Ensure the property is on. prop.autoManualMode = false; //Ensure auto-adjust mode is off. prop.absControl = true; //Ensure the property is set up to use absolute value control. prop.absValue = ms; //Set the absolute value. m_Error = m_Cam.SetProperty(&prop); //Set the property. if (m_Error != PGRERROR_OK) { PrintError(m_Error); return -1; } return 1; }