Method resizeKeepAspectRatioPadRightBottom

src/engine.h:760–770

template <typename T>
cv::cuda::GpuMat Engine<T>::resizeKeepAspectRatioPadRightBottom(const cv::cuda::GpuMat &input, size_t height, size_t width,
                                                                const cv::Scalar &bgcolor) {
    float r = std::min(width / (input.cols * 1.0), height / (input.rows * 1.0));
    int unpad_w = r * input.cols;
    int unpad_h = r * input.rows;
    cv::cuda::GpuMat re(unpad_h, unpad_w, CV_8UC3);
    cv::cuda::resize(input, re, re.size());
    cv::cuda::GpuMat out(height, width, CV_8UC3, bgcolor);
    re.copyTo(out(cv::Rect(0, 0, re.cols, re.rows)));
    return out;
}

template <typename T>
void Engine<T>::transformOutput(std::vector<std::vector<std::vector<T>>> &input, std::vector<std::vector<T>> &output) {