C++ (Cpp) ippiGetImage Examples

Example #1

File: private.hpp Project: Jazmann/opencv

static inline ::ipp::IwiImage ippiGetImage(const cv::Mat &src)
{
    ::ipp::IwiImage image;
    ippiGetImage(src, image);
    return image;
}

Example #2

File: deriv.cpp Project: ArkaJU/opencv

static bool ipp_Deriv(InputArray _src, OutputArray _dst, int dx, int dy, int ksize, double scale, double delta, int borderType)
{
#ifdef HAVE_IPP_IW
    CV_INSTRUMENT_REGION_IPP()

    ::ipp::IwiSize size(_src.size().width, _src.size().height);
    IppDataType   srcType   = ippiGetDataType(_src.depth());
    IppDataType   dstType   = ippiGetDataType(_dst.depth());
    int           channels  = _src.channels();
    bool          useScale  = false;
    bool          useScharr = false;

    if(channels != _dst.channels() || channels > 1)
        return false;

    if(fabs(delta) > FLT_EPSILON || fabs(scale-1) > FLT_EPSILON)
        useScale = true;

    if(ksize <= 0)
    {
        ksize     = 3;
        useScharr = true;
    }

    IppiMaskSize maskSize = ippiGetMaskSize(ksize, ksize);
    if((int)maskSize < 0)
        return false;

#if IPP_VERSION_X100 <= 201703
    // Bug with mirror wrap
    if(borderType == BORDER_REFLECT_101 && (ksize/2+1 > size.width || ksize/2+1 > size.height))
        return false;
#endif

    IwiDerivativeType derivType = ippiGetDerivType(dx, dy, (useScharr)?false:true);
    if((int)derivType < 0)
        return false;

    // Acquire data and begin processing
    try
    {
        Mat src = _src.getMat();
        Mat dst = _dst.getMat();
        ::ipp::IwiImage iwSrc      = ippiGetImage(src);
        ::ipp::IwiImage iwDst      = ippiGetImage(dst);
        ::ipp::IwiImage iwSrcProc  = iwSrc;
        ::ipp::IwiImage iwDstProc  = iwDst;
        ::ipp::IwiBorderSize  borderSize(maskSize);
        ::ipp::IwiBorderType  ippBorder(ippiGetBorder(iwSrc, borderType, borderSize));
        if(!ippBorder)
            return false;

        if(srcType == ipp8u && dstType == ipp8u)
        {
            iwDstProc.Alloc(iwDst.m_size, ipp16s, channels);
            useScale = true;
        }
        else if(srcType == ipp8u && dstType == ipp32f)
        {
            iwSrc -= borderSize;
            iwSrcProc.Alloc(iwSrc.m_size, ipp32f, channels);
            CV_INSTRUMENT_FUN_IPP(::ipp::iwiScale, iwSrc, iwSrcProc, 1, 0, ::ipp::IwiScaleParams(ippAlgHintFast));
            iwSrcProc += borderSize;
        }

        if(useScharr)
            CV_INSTRUMENT_FUN_IPP(::ipp::iwiFilterScharr, iwSrcProc, iwDstProc, derivType, maskSize, ::ipp::IwDefault(), ippBorder);
        else
            CV_INSTRUMENT_FUN_IPP(::ipp::iwiFilterSobel, iwSrcProc, iwDstProc, derivType, maskSize, ::ipp::IwDefault(), ippBorder);

        if(useScale)
            CV_INSTRUMENT_FUN_IPP(::ipp::iwiScale, iwDstProc, iwDst, scale, delta, ::ipp::IwiScaleParams(ippAlgHintFast));
    }
    catch (::ipp::IwException)
    {
        return false;
    }

    return true;
#else
    CV_UNUSED(_src); CV_UNUSED(_dst); CV_UNUSED(dx); CV_UNUSED(dy); CV_UNUSED(ksize); CV_UNUSED(scale); CV_UNUSED(delta); CV_UNUSED(borderType);
    return false;
#endif
}