在 Visual C++ 中配置 openCV 库的困难

Question

I'm trying to configure my Visual C++ to use the openCV libraries. I've followed the instructions on OpenCV website http://opencv.willowgarage.com/wiki/VisualC%2B%2B ...

// OpenCV_Helloworld.cpp : Defines the entry point for the console application.
// Created for build/install tutorial, Microsoft Visual Studio and OpenCV 2.2.0

#include "stdafx.h"

#include <cv.h>
#include <cxcore.h>
#include <highgui.h>

int _tmain(int argc, _TCHAR* argv[])
{
        // Open the file.
        IplImage *img = cvLoadImage("photo.jpg");
        if (!img) {
                printf("Error: Couldn't open the image file.\n");
                return 1;
        }

        // Display the image.
        cvNamedWindow("Image:", CV_WINDOW_AUTOSIZE);
        cvShowImage("Image:", img);

        // Wait for the user to press a key in the GUI window.
        cvWaitKey(0);

        // Free the resources.
        cvDestroyWindow("Image:");
        cvReleaseImage(&img);

        return 0;
}

I have altered the include and library directories in VC++ directories inside the Property Pages, and have added the additional dependencies. However, when I try and load an image with the same header files as the sample code, it says that cvLoadImage is undefined, as is cvNamedWindow

IplImage *img = cvLoadImage("JellyFish.jpg");

Any suggestions as to where I might have my problem?

Answer 1

You might try making sure your Code Generation for your project is Multi-threaded DLL (or Multi-threaded Debug DLL).

Answer 2

You need to configure using CMake. Get OpenCV 2.2 and try the following step by step guide.

http://kaushalsolanki.com/2011/01/compile-and-set-up-opencv-for-visual-studio-2010-with-64-bits-support-ipp-7-0-and-tbb/

Answer 3

I encountered the same error but i finally fixed it I am using opencv 2.3 what I did was I changed all the additional dependencies from opencv_core220d.lib to opencv_core231d.lib we need to change all of the dependencies in the same way

and then i copied all the *.dll files from my bin>>debug folder to where i had new project that is helloworld>>helloworld

for example C:\opencv\build\bin\debug copy all *.dll files to C:\opencv\Projects\helloworld\helloworld