getting frame in mat

[Deepak_k_]

hi,

i am trying to get the frame acquired from realsense camera into mat variable and show the live stream of camera using imshow();

here is the code :-

int wmain(int argc, WCHAR* argv[]) 
{

    // initialize the util render 
    UtilRender renderColor(L"Color");

    // create the PXCSenseManager
    PXCSenseManager *psm=0;
    psm = PXCSenseManager::CreateInstance();
    if (!psm) {
        wprintf_s(L"Unable to create the PXCSenseManager\n");
        return 1;
    }

    /* Collects command line arguments */
    UtilCmdLine cmdl(psm->QuerySession());
    if (!cmdl.Parse(L"-listio-nframes-sdname-csize-dsize-isize-file-record-noRender-mirror",argc,argv)) return 3;

    // select the color stream of size 640x480 and depth stream of size 320x240
    psm->EnableStream(PXCCapture::STREAM_TYPE_COLOR, 640, 480);

    // initialize the PXCSenseManager
    if(psm->Init() != PXC_STATUS_NO_ERROR) return 2;

    PXCImage *colorIm, *depthIm;
    for (int i=0; i<MAX_FRAMES; i++) {

        // This function blocks until all streams are ready (depth and color)
        // if false streams will be unaligned
        if (psm->AcquireFrame(true)<PXC_STATUS_NO_ERROR) break; 

        // retrieve all available image samples
        PXCCapture::Sample *sample = psm->QuerySample();

        // retrieve the image or frame by type from the sample
        colorIm = sample->color;

        
        // Mat conversion

        PXCImage::ImageData mCImageData; //Color Image data..)
        PXCImage *img = colorIm;
        if (img->AcquireAccess(PXCImage::ACCESS_READ, &mCImageData) >= PXC_STATUS_NO_ERROR) 
        {
        IplImage* colorimg = cvCreateImageHeader(cvSize(640,480), 8, 3);
        cvSetData(colorimg, (uchar*)mCImageData.planes[0], 640*3*sizeof(char));
        Mat image(colorimg);
        imshow("RGB", image);
        }
 

        // release or unlock the current frame to fetch the next frame
        psm->ReleaseFrame();
    }

    // close the last opened streams and release any session and processing module instances
    psm->Release();

    return 0;
}

when i run this code 

error occurs---------- Run-Time Check Failure #3 - The variable 'mCImageData' is being used without being initialized.-----------

what should i do.

thanks !!

[samontab]

Try using the C++ interface of OpenCV, so cv::Mat instead of IplImage.

Search in this forum, there a few OpenCV examples here.