Use C++ openCV code into Windows Universal app in C#

asked 2015-12-31 10:35:19 -0500

GVannu gravatar image

updated 2016-01-02 05:32:34 -0500

LBerger gravatar image

Dear all, I am planning to do a Windows 10 Universal app. Into this app I want integrate part of my c++ OpenCV code. So I create a solution with a c# project and a windows c++ runtime component. So, now, I can call c++ code from c# app, this strategy work well, maybe is not the better, but work for my purpose. The c++ code into runtime component is very easy, just read frame from Webcam:

#include "Class1.h"
#include <core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include "opencv2/objdetect/objdetect.hpp"
#include <opencv2/imgproc.hpp>

using namespace WindowsRuntimeComponent1;
using namespace Platform;
using namespace cv;
using namespace std;

Mat cameraFrame;
Mat mGray;
    VideoCapture stream1(0);
    Mat mGray;
    while (true) {;
        cvtColor(cameraFrame, mGray, CV_RGB2GRAY);
        //imshow("My Window", mGray);

        if (waitKey(10) >= 0)

For now, imshow is commented, I think that I can't use into C# app.

Now, I want show mGray Mat into an Image object into my c# app, this is my XAML:

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <Image x:Name="imgCV" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Loaded="imgCV_Loaded"/>

as you can see I also add a Loaded event, but for now I don't code this event. I am stop here and I am not able to proceed. Can you help me? How can I show my mGray Mat into XAML object Image?

Thank you all, and happy new year.

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I know nothing about universal application but it is an interesting thread. Have you try with this ?

LBerger gravatar imageLBerger ( 2016-01-02 05:23:46 -0500 )edit