openCV错误:对`cvLoadImage'Ubuntu的未定义引用 [英] openCV error : undefined reference to `cvLoadImage' Ubuntu
问题描述
我已经安装了openCV库但我仍然收到错误
$ g ++ -I / usr / include / opencv / -L -lcxcore -lhighgui hello.cpp -o hello < br>
/tmp/ccjjrbXr.o:在函数 main':
cvLoadImage '
hello.cpp :(。text + 0x2d):未定义引用
collect2:ld返回1退出状态
I have installed the openCV libraries but I am still getting the error
$ g++ -I /usr/include/opencv/ -L -lcxcore -lhighgui hello.cpp -o hello
/tmp/ccjjrbXr.o: In function main':
hello.cpp:(.text+0x2d): undefined reference to
cvLoadImage'
collect2: ld returned 1 exit status
当我检查库的路径时,我得到了
$ pkg-config --libs opencv
-lml -lcvaux -lhighgui -lcv -lcxcore
When I check for the path of the libraries I get
$ pkg-config --libs opencv
-lml -lcvaux -lhighgui -lcv -lcxcore
I写了一个非常简单的程序来测试它:
I have written a very simple program to test it :
enter code here
#include< cv.h>
#include< highgui.h> /* required to use OpenCV's highgui */
#include< stdio.h>
int main() {
IplImage* img = 0;
printf("Hello\n");
img = cvLoadImage("lena.jpg", 0 );
}
我的安装有问题,但我真的无法理解出。任何指导将受到高度赞赏!
谢谢
There is something wrong with my installation but I am really not able to figure it out. Any guidance will be highly appreciated! Thanks
当我跑步时:
$ pkg-config --cflags --libs opencv
-I/usr/local/include/opencv -I/usr/local/include
/usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so
/usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so
/usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so
/usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so
/usr/local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so
/usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so
/usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_stitching.so
/usr/local/lib/libopencv_ts.so /usr/local/lib/libopencv_video.so
/usr/local/lib/libopencv_videostab.so
但是当我跑步时:
$ g++ 'pkg-config --cflags --libs opencv' display_image.cpp
g++: error: pkg-config --cflags --libs opencv: No such file or directory
OpenCV似乎已安装,但问题仍然存在。
OpenCV seems to be installed but still the problem persists.
推荐答案
您使用单引号'
而不是反引号/反引号 `
。这是更正的命令:
You used single quotes '
instead of backquotes/backticks `
. This is the corrected command:
g++ hello.cpp -o hello `pkg-config --cflags --libs opencv`
这篇关于openCV错误:对`cvLoadImage'Ubuntu的未定义引用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!