resize dhw rgb image | Together C & C++ | Page 1

i have needs to resize dhw rgb image, conversions not allowed (slow), i want to just resize with proper proportions, i just started that and asking if anyone here already know best algo for that

cv::Mat YoloV8::resizeRawImage(MainDataUnit unit)
{
    const auto& inputDims = m_trtEngine->getInputDims();
    cv::Mat mat(inputDims[0].d[1],inputDims[0].d[2],CV_8UC3); // dimension values unrelated, just for right allocated size
    assert(unit.params->layout == eDepth_Height_Width);
    assert(unit.params->type == eDataUnitType::eRGBImage);

    if (unit.params->height != inputDims[0].d[1] || unit.params->width != inputDims[0].d[2]) {
        // resize unit.data8 to mat
    }

    m_imgHeight = mat.rows;
    m_imgWidth = mat.cols;
    m_ratio =  1.f / std::min(inputDims[0].d[2] / static_cast<float>(mat.cols), inputDims[0].d[1] / static_cast<float>(mat.rows));
    return mat;
}

#resize dhw rgb image