Mam trzy kamery FireWire, które mogą automatycznie synchronizować sprzętowo i próbuję przechwytywać ramki, zapisywać je na dysku twardym i wyświetlać w oknie.

Wszystko działa dobrze, ale w tej chwiliRamki mogę wyświetlać tylko w trzech różnych oknach jednocześnie.

Chciałbym wyświetlić ramki w jednym oknie ale nie wiem, jak to zrobić. W tympołączyć istnieje funkcja cvShowManyImages (), ale musisz przekazać trzy ramki jednocześnie, ale mam pętlę for (), która może rozpatrywać jedną klatkę na raz.

To jest kod, którego używam:

  for ( int j = 0; j < k_numImages; j++ )
    {
        // Display the timestamps for all cameras to show that the image
        // capture is synchronized for each image
        for ( unsigned int i = 0; i < numCameras; i++ )
        {
            Image image;
            error = ppCameras[i]->RetrieveBuffer( &image );
            if (error != PGRERROR_OK)
            {
                PrintError( error );
                return -1;
            }
            IplImage* destImage = ConvertImageToOpenCV(&image);
            char titolo[50];
            sprintf(titolo, "titolo%d", i);
            cvShowImage(titolo, destImage);
            waitKey(1);
        }
   }

Działa dobrze, ale tworzy różne okna dla każdej kameryChcę wyświetlić wszystkie klatki kamer w tym samym oknie.

Czy możesz mi pomóc?

EDYTUJ: jest to funkcja ConvertImageToOpenCV ().

IplImage* ConvertImageToOpenCV(Image* pImage)
{
    IplImage* cvImage = NULL;
    bool bColor = true;
    CvSize mySize;
    mySize.height = pImage->GetRows();
    mySize.width = pImage->GetCols();

    switch ( pImage->GetPixelFormat() )
    {
        case PIXEL_FORMAT_MONO8:     cvImage = cvCreateImageHeader(mySize, 8, 1 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 1;
                                     bColor = false;
                                     break;
        case PIXEL_FORMAT_411YUV8:   cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_422YUV8:   cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_444YUV8:   cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_RGB8:      cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_MONO16:    cvImage = cvCreateImageHeader(mySize, 16, 1 );
                                     cvImage->depth = IPL_DEPTH_16U;
                                     cvImage->nChannels = 1;
                                     bColor = false;
                                     break;
        case PIXEL_FORMAT_RGB16:     cvImage = cvCreateImageHeader(mySize, 16, 3 );
                                     cvImage->depth = IPL_DEPTH_16U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_S_MONO16:  cvImage = cvCreateImageHeader(mySize, 16, 1 );
                                     cvImage->depth = IPL_DEPTH_16U;
                                     cvImage->nChannels = 1;
                                     bColor = false;
                                     break;
        case PIXEL_FORMAT_S_RGB16:   cvImage = cvCreateImageHeader(mySize, 16, 3 );
                                     cvImage->depth = IPL_DEPTH_16U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_RAW8:      cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_RAW16:     cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_MONO12:    printf("Not supported by OpenCV");
                                     bColor = false;
                                     break;
        case PIXEL_FORMAT_RAW12:     printf("Not supported by OpenCV");
                                     break;
        case PIXEL_FORMAT_BGR:       cvImage = cvCreateImageHeader(mySize, 8, 3 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 3;
                                     break;
        case PIXEL_FORMAT_BGRU:      cvImage = cvCreateImageHeader(mySize, 8, 4 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 4;
                                     break;
        case PIXEL_FORMAT_RGBU:      cvImage = cvCreateImageHeader(mySize, 8, 4 );
                                     cvImage->depth = IPL_DEPTH_8U;
                                     cvImage->nChannels = 4;
                                     break;
        default: printf("Some error occured...\n");
                 return NULL;
    }

    if(bColor) {
        if(!bInitialized)
        {
            colorImage.SetData(new unsigned char[pImage->GetCols() * pImage->GetRows()*3], pImage->GetCols() * pImage->GetRows()*3);
            bInitialized = true;
        }

        pImage->Convert(PIXEL_FORMAT_BGR, &colorImage); //needs to be as BGR to be saved

        cvImage->width = colorImage.GetCols();
        cvImage->height = colorImage.GetRows();
        cvImage->widthStep = colorImage.GetStride();

        cvImage->origin = 0; //interleaved color channels

        cvImage->imageDataOrigin = (char*)colorImage.GetData(); //DataOrigin and Data same pointer, no ROI
        cvImage->imageData         = (char*)(colorImage.GetData());
        cvImage->widthStep      = colorImage.GetStride();
        cvImage->nSize = sizeof (IplImage);
        cvImage->imageSize = cvImage->height * cvImage->widthStep;
    }
    else
    {
        cvImage->imageDataOrigin = (char*)(pImage->GetData());
        cvImage->imageData         = (char*)(pImage->GetData());
        cvImage->widthStep         = pImage->GetStride();
        cvImage->nSize             = sizeof (IplImage);
        cvImage->imageSize         = cvImage->height * cvImage->widthStep;

        //at this point cvImage contains a valid IplImage
     }
    return cvImage;
}