Read Frame from uEye camera with uEye SDK, OpenCv

example.cpp

#include <QtCore/QCoreApplication>
 
 
#include <uEye.h>
#include <uEye_tools.h>
#include <ueye_deprecated.h>
#include <wchar.h>
#include <locale.h>
#include <stdlib.h>
#include <stdio.h>
#include <opencv2/highgui/highgui.hpp>
#include <QDebug>
 
 
 
using namespace std;
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
 
     HIDS hCam = 0;
     char* imgMem;
     int memId;
     if(is_InitCamera (&hCam, NULL)!= IS_SUCCESS){
       return 0;
     }
 
     int img_width=640, img_height=360, img_bpp=24, img_step, img_data_size;
     is_AllocImageMem(hCam, img_width, img_height, img_bpp, &imgMem, &memId);
     is_SetImageMem (hCam, imgMem, memId);
     is_SetDisplayMode (hCam, IS_SET_DM_DIB);
     is_SetColorMode (hCam, IS_CM_RGB8_PACKED);
     is_SetImageSize (hCam, img_width, img_height);
 
 
     double enable = 1;
     double disable = 0;
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_GAIN, &enable, 0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_WHITEBALANCE, &enable, 0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_FRAMERATE, &disable, 0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_SHUTTER, &disable, 0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_SENSOR_GAIN, &enable, 0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_SENSOR_WHITEBALANCE,&enable,0);
     is_SetAutoParameter (hCam, IS_SET_ENABLE_AUTO_SENSOR_SHUTTER, &disable, 0);
 
double FPS,NEWFPS;
FPS = 15;
double fps;
is_SetFrameRate(hCam,FPS,&NEWFPS);
 
             double parameter = 50;
             int error = is_Exposure(hCam, IS_EXPOSURE_CMD_SET_EXPOSURE, (void*) &parameter, sizeof(parameter));
             if (error != IS_SUCCESS) {
                     qDebug() << "): failed" <<parameter;
             }
 
error = is_Exposure(hCam, IS_EXPOSURE_CMD_GET_EXPOSURE, (void*) &parameter, sizeof(parameter));
 
UINT uiCaps = 0;
 
  INT nRet = is_Focus (hCam, FDT_CMD_GET_CAPABILITIES, &uiCaps, sizeof (uiCaps) );
 
     if (nRet == IS_SUCCESS && (uiCaps & FOC_CAP_AUTOFOCUS_SUPPORTED))
     {
     qDebug() << "If supported, enable auto focus";
     nRet = is_Focus (hCam, FOC_CMD_SET_DISABLE_AUTOFOCUS, NULL, 0);
     }
 
     nRet = is_SetGamma(hCam,600);
     enable = 2;
char filename[512];
 
for(int ii=0; ii<100; ii++)
{
       if(is_FreezeVideo(hCam, IS_WAIT) == IS_SUCCESS){
            void *pMemVoid; //pointer to where the image is stored
            is_GetImageMem (hCam, &pMemVoid);
            IplImage * img;
            img=cvCreateImage(cvSize(img_width, img_height), IPL_DEPTH_8U, 3); 
            img->nSize=112;
            img->ID=0;
            img->nChannels=3;
            img->alphaChannel=0;
            img->depth=8;
            img->dataOrder=0;
            img->origin=0;
            img->align=4;
            img->width=img_width;
            img->height=img_height;
            img->roi=NULL;
            img->maskROI=NULL;
            img->imageId=NULL;
            img->tileInfo=NULL;
            img->imageSize=3*img_width*img_height;
            img->imageData=(char*)pMemVoid;  //the pointer to imagaData
            img->widthStep=3*img_width;
            img->imageDataOrigin=(char*)pMemVoid; //and again
            //now you can use your img just like a normal OpenCV image
            cvNamedWindow( "A", 1 );
            cvShowImage("A",img);
            cv::waitKey(1);
       }
       else{
            qDebug() << "ERROR FREEZE";
       }
}
 
    is_ExitCamera(hCam);
    return a.exec();
}