C++ 错误：imread 不是 cv 的成员
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error: imread is not a member of cv
提问by CanCam
I use OpenCV 3.0 and Ubuntu 14.04. I'm trying to compile a few codes on ubuntu using opencv. I get error
我使用 OpenCV 3.0 和 Ubuntu 14.04。我正在尝试使用 opencv 在 ubuntu 上编译一些代码。我得到错误
"error: 'imread' is not a member of 'cv'"
“错误：‘imread’不是‘cv’的成员”
Due to my previous search knowledge, I tried compiling by adding "highgui.h".
由于我之前的搜索知识，我尝试通过添加“highgui.h”进行编译。
I use:
我用：
$g++ main.cpp HOG.cpp HOGFeaturesOfBlock.cpp -I/usr/local/include/opencv -lml -lcvaux -highgui -lcv -lcxcore -o featureExtractor
on terminal to compile.
在终端上编译。
Any suggest? Regards. Can.
有什么建议吗？问候。能。
回答by mask
The following commands should work. If it doesn't work you should check if you set the include/lib files correctly.
以下命令应该可以工作。如果它不起作用，您应该检查是否正确设置了包含/lib 文件。
#include <opencv2\highgui\highgui.hpp>
#include <opencv2\core\core.hpp>
#include <opencv\cv.hpp>
using namespace cv;
Mat image = imread(filename, CV_LOAD_IMAGE_COLOR);
回答by letsdev-cwack
#include <opencv2/imgcodecs.hpp>
solved the problem which contains the imread function
解决了包含 imread 函数的问题
回答by Roel Van de Paar
I found that the compile command had to be very specific (besides having added using namespace cv;in the code), with the source file having to come directly after the g++, as follows;
我发现编译命令必须非常具体（除了using namespace cv;在代码中添加），源文件必须直接在 之后g++，如下所示；
g++ test.cpp -fpermissive $(pkg-config --cflags --libs opencv) -o testbin
Replace opencvwith opencv4if that is what you use
更换opencv用opencv4，如果这是你用什么
回答by Forgoys
I had a same question before.
Just add #include "imgcodec.hpp",
Hope this can help you
我以前也有同样的问题。补充一下#include "imgcodec.hpp"，希望能帮到你
