使用Opencv3运行Opencv2开发的程序遇到的bug

最新推荐文章于 2025-07-11 12:08:26 发布

yuyuelongfly

最新推荐文章于 2025-07-11 12:08:26 发布

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分类专栏： Opencv

本文链接：https://blog.youkuaiyun.com/Cxiazaiyu/article/details/91127207

本文列举了在使用OpenCV3运行基于OpenCV2开发的程序时遇到的三个主要问题及解决方案。Bug1涉及到libopencv_imgcodecs的缺失，解决方法是在lib中添加相应链接。Bug2是头文件引用错误，需将<cv.h>替换为新的头文件。Bug3是由于OpenCV3的库路径问题，需手动添加库文件路径。

Bug1：

/usr/bin/ld: build/main.o: undefined reference to symbol '_ZN2cv6imreadERKNS_6StringEi'
/usr/local/lib/libopencv_imgcodecs.so.3.4: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

Solution:

在lib中加入 -lopencv_imgcodecs

Bug2:

error: ‘imread’ is not a member of ‘cv’
error: ‘imshow’ is not a member of ‘cv’
error: ‘resize’ is not a member of ‘cv’
...

Solution:

将主程序中的头文件#include "cv.h"替换为：

#include "opencv2/core/core.hpp"
#include "opencv2/opencv.hpp"

Bug3:

/usr/bin/ld: warning: libopencv_imgproc.so.3.4, needed by //usr/local/lib/libopencv_imgcodecs.so, may conflict with libopencv_imgproc.so.2.4
/usr/bin/ld: warning: libopencv_core.so.3.4, needed by //usr/local/lib/libopencv_imgcodecs.so, may conflict with libopencv_co