OpenCV - DLL 丢失，但不是? [英] OpenCV - DLL missing, but it's not?

问题描述

我正在尝试使用 OpenCV 的基本程序，代码如下:

#include "cv.h"#include "highgui.h"int main(){IplImage* newImg;newImg = cvLoadImage("~/apple.bmp", 1);cvNamedWindow("窗口", 1);cvShowImage("窗口", newImg);cvWaitKey(0);cvDestroyWindow("窗口");cvReleaseImage(&newImg);返回0；}

当我运行这个时，我得到

<块引用>

程序无法启动，因为您的系统中缺少 libcxcore200.dll计算机.尝试重新安装程序来解决这个问题.

但是，我可以看到这个 DLL.它存在.我已将以下内容添加到链接器的输入依赖项

<块引用>

C:OpenCV2.0liblibcv200.dll.aC:OpenCV2.0liblibcvaux200.dll.aC:OpenCV2.0liblibcxcore200.dll.aC:OpenCV2.0liblibhighgui200.dll.a

什么给?我使用的是 Visual Studio 2008.

当我链接 .dll 文件而不是 .dll.a 文件时，我得到 <块引用>

致命错误 LNK1107:无效或损坏文件:无法在 0x3F8 处读取libcv200.dll

解决方案

我按照 上的说明进行操作http://opencv.willowgarage.com/wiki/VisualC%2B%2B_VS2010 但仍然卡在完全相同的问题上，所以这是我解决它的方法.

1. 获取 MSVC 2010 速成版.

2. 获取 Win 32 OpenCV 2.2 二进制文件并安装在默认位置.

3. 创建了新项目.

4. 项目设置

   项目 -> OpenCV_Helloworld 属性...配置属性 -> VC++ 目录

   包含目录...添加:C:OpenCV2.2include;

   库目录...添加:C:OpenCV2.2lib;C:OpenCV2.2in;

   源目录...添加:

   C:OpenCV2.2modulescalib3dsrc;C:OpenCV2.2modulescontribsrc;C:OpenCV2.2modulescoresrc;C:OpenCV2.2modulesfeatures2dsrc;C:OpenCV2.2modulesflannsrc;C:OpenCV2.2modulesgpusrc;C:OpenCV2.2modulesgpusrc;C:OpenCV2.2moduleshighguisrc;C:OpenCV2.2modulesimgprocsrc;C:OpenCV2.2moduleslegacysrc;C:OpenCV2.2modulesmlsrc;C:OpenCV2.2modulesobjdetectsrc;C:OpenCV2.2modulesvideosrc;

   链接器 -> 输入 -> 附加依赖项...

   对于调试版本...添加:

   opencv_calib3d220d.lib;opencv_contrib220d.lib;opencv_core220d.lib;opencv_features2d220d.lib;opencv_ffmpeg220d.lib;opencv_flann220d.lib;opencv_gpu2220d.guid2open20d.cvopen220d.lib2opend20d.cvopen220d.cvopen220d.lib2opend20d.opencv_objdetect220d.lib;opencv_video220d.lib;

此时我以为我已经完成了，但是在调试模式下运行exe时遇到了您描述的问题.看到最后一步就很明显了，选择:

链接器 -> 常规 ... 将使用库依赖项输入"设置为是"

希望这会有所帮助.

I am trying just a basic program with OpenCV with the following code:

#include "cv.h"
#include "highgui.h"

int main()
{
    IplImage* newImg;
    newImg = cvLoadImage("~/apple.bmp", 1);
    cvNamedWindow("Window", 1);
    cvShowImage("Window", newImg);
    cvWaitKey(0);
    cvDestroyWindow("Window");
    cvReleaseImage(&newImg);
    return 0;
}

When I run this, I get

The program can't start because libcxcore200.dll is missing from your computer. Try reinstalling the program to fix this problem.

However, I can see this DLL. It exists. I have added the following to the input dependencies for my linker

C:OpenCV2.0liblibcv200.dll.a C:OpenCV2.0liblibcvaux200.dll.a C:OpenCV2.0liblibcxcore200.dll.a C:OpenCV2.0liblibhighgui200.dll.a

What gives? I'm using visual studio 2008.

When I link the .dll files instead of .dll.a files, I get

fatal error LNK1107:invalid or corrupt file: cannot read at 0x3F8 libcv200.dll

解决方案

I followed instructions on http://opencv.willowgarage.com/wiki/VisualC%2B%2B_VS2010 but was still stuck on exactly the same problem, so here's how I resolved it.

1. Fetched MSVC 2010 express edition.

2. Fetched Win 32 OpenCV 2.2 binaries and installed in default location.

3. Created new project.

4. Project setup

   Project -> OpenCV_Helloworld Properties...Configuration Properties -> VC++ Directories

   Include Directories... add: C:OpenCV2.2include;

   Library Directories... add: C:OpenCV2.2lib;C:OpenCV2.2in;

   Source Directories... add:

   C:OpenCV2.2modulescalib3dsrc;C:OpenCV2.2modulescontribsrc;C:OpenCV2.2modulescoresrc;C:OpenCV2.2modulesfeatures2dsrc;C:OpenCV2.2modulesflannsrc;C:OpenCV2.2modulesgpusrc;C:OpenCV2.2modulesgpusrc;C:OpenCV2.2moduleshighguisrc;C:OpenCV2.2modulesimgprocsrc;C:OpenCV2.2moduleslegacysrc;C:OpenCV2.2modulesmlsrc;C:OpenCV2.2modulesobjdetectsrc;C:OpenCV2.2modulesvideosrc;
   

   Linker -> Input -> Additional Dependencies...

   For Debug Builds... add:

   opencv_calib3d220d.lib;opencv_contrib220d.lib;opencv_core220d.lib;opencv_features2d220d.lib;opencv_ffmpeg220d.lib;opencv_flann220d.lib;opencv_gpu220d.lib;opencv_highgui220d.lib;opencv_imgproc220d.lib;opencv_legacy220d.lib;opencv_ml220d.lib;opencv_objdetect220d.lib;opencv_video220d.lib;
   

At this point I thought I was done, but ran into the problem you described when running the exe in debug mode. The final step is obvious once you see it, select:

Linker -> General ... Set 'Use Library Dependency Inputs' to 'Yes'

Hope this helps.

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