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  • OpenCV中imread失败cvLoadImage成功

    MYLAF 环境说明 
    编程环境:Windows 10(64bit), VS2013, OpenCV 2.4.12; 
    编程语言:C/C++;

    MYLAF 现象 
    在代码中,调用imread读取图片失败,但调用cvLoadImage读取成功。

    MYLAF 代码

    // MYLAF 
    #include "opencv2/opencv.hpp"
    
    using namespace std;
    using namespace cv;
    
    int main() {
    
        Mat im = imread("D:\imgSrc.png");//
        IplImage* img = cvLoadImage("D:\imgSrc.png");
        if (img) {
            im = img; 
        }
    
        imshow("orig",im);
    
        waitKey(0);
    
        return 0;
    }

    MYLAF 原来如此 
    OpenCV的imread,imshow等等这些函数在编译链接时是认主的,特别忠心不二。 
    用人话来说就是:如果你使用Debug模式编译链接,那么请链接Debug模式(opencv_*2412d.lib等)库文件;如果你使用Release模式编译链接,那么请链接Release模式(opencv_*2412.lib)等库文件。 
    否则,你就自己玩去吧。 
    MYLAF 解决 
    在“VS项目–属性–链接器–输入–附加依赖项”添加与项目配置Configuration相对应的lib文件。 
    或者使用如下类似代码进行指定对应的lib文件

    #if _DEBUG // _DEBUG=Debug模式
    #pragma comment(lib, "opencv_core2412d.lib")
    #else // NDEBUG=Release模式
    #pragma comment(lib, "opencv_core2412.lib")
    #endif  

    MYLAF 小肌肉 
    VS项目属性文件*.props中说明:

      <ItemDefinitionGroup>
        <ClCompile>
          <AdditionalIncludeDirectories>$(OPENCV_INC_DIR);$(OPENCV_INC_DIR)opencv;$(OPENCV_INC_DIR)opencv2;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
        </ClCompile>
        <Link>
          <AdditionalLibraryDirectories>$(OPENCV_LIB_DIR);$(OPENCV_BIN_DIR);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
          <AdditionalDependencies Condition="'$(Configuration)' == 'Debug' ">opencv_core2412d.lib;opencv_flann2412d.lib;opencv_features2d2412d.lib;opencv_ml2412d.lib;opencv_legacy2412d.lib;opencv_photo2412d.lib;opencv_ocl2412d.lib;opencv_contrib2412d.lib;opencv_superres2412d.lib;opencv_videostab2412d.lib;opencv_ts2412d.lib;opencv_stitching2412d.lib;opencv_nonfree2412d.lib;opencv_gpu2412d.lib;opencv_objdetect2412d.lib;opencv_video2412d.lib;opencv_calib3d2412d.lib;opencv_highgui2412d.lib;opencv_imgproc2412d.lib;%(AdditionalDependencies)</AdditionalDependencies>
          <AdditionalDependencies Condition="'$(Configuration)' == 'Release' ">opencv_core2412.lib;opencv_flann2412.lib;opencv_features2d2412.lib;opencv_ml2412.lib;opencv_legacy2412.lib;opencv_photo2412.lib;opencv_ocl2412.lib;opencv_contrib2412.lib;opencv_superres2412.lib;opencv_videostab2412.lib;opencv_ts2412.lib;opencv_stitching2412.lib;opencv_nonfree2412.lib;opencv_gpu2412.lib;opencv_objdetect2412.lib;opencv_video2412.lib;opencv_calib3d2412.lib;opencv_highgui2412.lib;opencv_imgproc2412.lib;%(AdditionalDependencies)</AdditionalDependencies>
        </Link>
      </ItemDefinitionGroup>

    // MYLAF 

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  • 原文地址:https://www.cnblogs.com/yzl050819/p/9184577.html
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