为什么我不能编译此命令行OpenCV Mac应用程序? [英] Why can't I compile this command-line OpenCV Mac application?

问题描述

以下是我的步骤:

1)创建一个命令行工具项目"OpenCV"

1)create a command line tool project "OpenCV"

2)将文件添加到项目中的后缀为2.4.2的/usr/local/lib中，例如 "libopencv_calib3d.2.4.2.dylib"

2)add files to the project which are in /usr/local/lib with suffix 2.4.2, such as "libopencv_calib3d.2.4.2.dylib"

3)在项目的标题搜索路径中添加"/usr/local/include"

3)add "/usr/local/include" to project's Header Search Path

4)输入此程序:

#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv/cvaux.hpp>

int main(int argc, char** argv)
{
    IplImage * pInpImg = 0;

    // Load an image from file - change this based on your image name
    pInpImg = cvLoadImage("my_image.jpg", CV_LOAD_IMAGE_UNCHANGED);
    if(!pInpImg)
    {
        fprintf(stderr, "failed to load input image\n");
        return -1;
    }

    // Write the image to a file with a different name,
    // using a different image format -- .png instead of .jpg
    if( !cvSaveImage("my_image_copy.png", pInpImg) )
    {
        fprintf(stderr, "failed to write image file\n");
    }

    // Remember to free image memory after using it!
    cvReleaseImage(&pInpImg);

    return 0;
}

但是，我收到错误消息:

However, I get error :

ld: library not found for -lopencv_calib3d.2.4.2
clang: error: linker command failed with exit code 1 (use -v to see invocation)

问题出在哪里?

我正在使用美洲狮和Xcode 4.4

I'm using mountain lion and Xcode 4.4

推荐答案

您不需要将opencv库添加到您的项目中，但是您需要链接到库并设置库搜索路径.我能够使用以下设置编译并运行您的程序:

You don't need to add the opencv libs to your project but you do need to link to the libraries and set the library search path. I was able to compile and run your program with these settings:

搜索路径:

链接到库:

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