getting frame in mat

Deepak_k_ — Fri, 09 Jan 2015 08:38:40 GMT

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 !!

Try using the C++ interface

samontab — Fri, 09 Jan 2015 08:47:34 GMT

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

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

topic getting frame in mat in Software Archive

getting frame in mat

Try using the C++ interface