c++ - OpenCV SuperResolution OutputArray框架

在SuperResolution的文档中

输出下一帧所需的代码是:
void superres::SuperResolution::nextFrame(OutputArray frame)
输入帧源必须设置为:
void superres::SuperResolution::setInput(const Ptr<FrameSource>& frameSource)
我有一个从视频中获取帧的代码:

#include "opencv2/opencv.hpp"
#include "iostream"

using namespace cv;
using namespace std;
int main(int, char**)
{
    VideoCapture cap ( "video1.mp4" ); // open the default camera
    if( ! cap.isOpened () )  // check if we succeeded
        return -1;

    /* Mat edges; */
    namedWindow ( "Video" , 1 );
    double frnb ( cap.get ( CV_CAP_PROP_FRAME_COUNT ) );
    std::cout << "frame count = " << frnb << endl;

    for(;;)
    {
        Mat frame;
        double fIdx;

        std::cout << "frame index ? ";
        std::cin >> fIdx;
        if ( fIdx < 0 || fIdx >= frnb ) break;
        cap.set ( CV_CAP_PROP_POS_FRAMES , fIdx );
        bool success = cap.read(frame);
        if ( ! success )
        {
            cout << "Cannot read  frame " << endl;
            break;
        }
        /* cap >> frame; // get a new frame from camera */
        imshow("Video", frame);
        if ( waitKey (0) == 27 ) break;
    }
    // the camera will be deinitialized automatically in VideoCapture destructor
    return 0;
}

鉴于此，我可以将frame变量用作setInput方法的参数，但是如何初始化生成输出所需的OutputArray frame呢？

最佳答案

我认为您不能将frame用作setInput的参数，并且不需要初始化OutputArray frame。

checkout this example:

FrameSource是这样创建的:

   121. frameSource = createFrameSource_Video(inputVideoName);

然后使用outputArray框架，如下所示:

   142. Mat result; // no intialization, just declaration
   144. MEASURE_TIME(superRes->nextFrame(result));

关于c++ - OpenCV SuperResolution OutputArray框架，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/33615650/

outputarray

c++ - OpenCV SuperResolution OutputArray框架