Qt Forum

sajis997

Hello forum,

I have installed and configured QtCreator, OpenCV on windows 10 and compiled sample OpenCV application with success. Then I need to incorporate the windows debugger by installing the visual studio component - Windows SDK. After the installation I point to the auto detected debugger in QtCreator and then the very same sample application that used to run does not compile any more and having the following error while trying to compile:

C:\Users\si3699\Documents\CustomInstallation\ComputerVision\opencv\build\include\opencv2\core\types_c.h:55: error: C1083: Cannot open include file: 'assert.h': No such file or directoryyour code here

The whole source code is shown below:

#include<opencv2/core/core.hpp>
#include<opencv2/highgui/highgui.hpp>
#include<opencv2/imgproc/imgproc.hpp>

#include<iostream>
#include<conio.h>           // may have to modify this line if not using Windows


using namespace std;

///////////////////////////////////////////////////////////////////////////////////////////////////
int main() {

    cv::Mat imgOriginal;        // input image
    cv::Mat imgGrayscale;       // grayscale of input image
    cv::Mat imgBlurred;         // intermediate blured image
    cv::Mat imgCanny;           // Canny edge image

    imgOriginal = cv::imread("alten.jpg");          // open image

    if (imgOriginal.empty()) {                                  // if unable to open image
        std::cout << "error: image not read from file\n\n";     // show error message on command line
        _getch();                                               // may have to modify this line if not using Windows
        return(0);                                              // and exit program
    }

    cv::cvtColor(imgOriginal, imgGrayscale, CV_BGR2GRAY);       // convert to grayscale

    cv::GaussianBlur(imgGrayscale,          // input image
        imgBlurred,                         // output image
        cv::Size(5, 5),                     // smoothing window width and height in pixels
        1.5);                               // sigma value, determines how much the image will be blurred

    cv::Canny(imgBlurred,           // input image
        imgCanny,                   // output image
        100,                        // low threshold
        200);                       // high threshold

                                        // declare windows
    cv::namedWindow("imgOriginal", CV_WINDOW_AUTOSIZE);     // note: you can use CV_WINDOW_NORMAL which allows resizing the window
    cv::namedWindow("imgCanny", CV_WINDOW_AUTOSIZE);        // or CV_WINDOW_AUTOSIZE for a fixed size window matching the resolution of the image
                                                            // CV_WINDOW_AUTOSIZE is the default
    cv::imshow("imgOriginal", imgOriginal);     // show windows
    cv::imshow("imgCanny", imgCanny);

    cv::waitKey(0);                 // hold windows open until user presses a key

    return(0);
}

Some hint is requested to get around this issue.

Thanks

used to

sierdzio

You are most probably mixing compilers here (earlier you compiled OpenCV and Qt using MinGW, now you try to use MinGW libs with Visual Studio compiler - that won't work because they are incompatible).

sajis997

No I did not. I compiled OpenCV using MSVS 2015. I used the manual found at

Installation Manual

sierdzio

OK, from what I gather from this and this it might be that you either did not run install on OpenCV (which should not be necessary), or you miss some includes, please try adding them to INCLUDEPATH in .pro file.

I'm only guessing, though ;-)

sajis997

Here goes the contents of the .pro file:

TEMPLATE = app
CONFIG += console c++11
CONFIG -= app_bundle
CONFIG -= qt

INCLUDEPATH += C:\\Users\\si3699\\Documents\\CustomInstallation\\ComputerVision\\opencv\\build\\include

LIBS += -LC:\\Users\\si3699\\Documents\\CustomInstallation\\ComputerVision\\opencv\\mybuild\\lib\\Debug \
    -lopencv_calib3d2413d \
    -lopencv_contrib2413d \
    -lopencv_core2413d \
    -lopencv_features2d2413d \
    -lopencv_flann2413d \
    -lopencv_haartraining_engined \
    -lopencv_highgui2413d \
    -lopencv_imgproc2413d \
    -lopencv_legacy2413d \
    -lopencv_ml2413d \
    -lopencv_nonfree2413d \
    -lopencv_objdetect2413d \
    -lopencv_photo2413d \
    -lopencv_stitching2413d \
    -lopencv_superres2413d \
    -lopencv_ts2413d \
    -lopencv_video2413d \
    -lopencv_videostab2413d

SOURCES += main.cpp

sajis997

@sierdzio I have already installed OpenCV by CMake using the MSVS 2015 compiler.

sierdzio

No idea then, sorry.

QtCreator, OpenCV in Windows 10