小编Saj*_*mmi的帖子

我用c++和OpenCV写了一段代码：

#include <iostream>
#include <time.h>
#include <opencv2/opencv.hpp>
#include <opencv2/highgui.hpp>

using namespace std;

int main()
{
    ...
    return 0;
}

然后我尝试在终端上运行我的代码并使用 g++ 进行构建：

g++ $(pkg-config --cflags --libs opencv) -std=c++11  yourFile.cpp -o yourFileProgram

但我收到此错误：

...
ld: warning: ignoring file /opt/homebrew/Cellar/opencv/4.5.1_2/lib/libopencv_core.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64
ld: warning: ignoring file /opt/homebrew/Cellar/opencv/4.5.1_2/lib/libopencv_photo.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64
Undefined symbols for architecture x86_64:
  "cv::Mat::Mat()", referenced from:
      _main in cv_test-ff1014.o
  "cv::Mat::~Mat()", referenced …

我需要使用 matplotlib 中的 2 个特征绘制具有多个线性回归的 3D 图。我怎样才能做到这一点？

这是我的代码：

import pandas
from sklearn import linear_model

df = pandas.read_csv("cars.csv")

X = df[['Weight', 'Volume']]
y = df['CO2']

regr = linear_model.LinearRegression()

predictedCO2 = regr.predict([scaled[0]])
print(predictedCO2)

我下载了 libtorch 并在 macbook pro ARM 上制作了这些文件：

example-app/
     build/
     libtorch/
     CMakeLists.txt
     example-app.cpp

然后我使用这些命令来构建火炬：

cmake -DCMAKE_PREFIX_PATH=/path-to-example-app/example-app/libtorch
make

我收到此错误：

building for macOS-x86_64 but attempting to link with file built for unknown-arm64

你能帮助我吗？

我使用 C++ 编写了一个简单的 OpenCV 代码并在 linux 中运行它：

#include <iostream>\n#include <opencv2/opencv.hpp>\n#include <opencv2/highgui.hpp>\nusing namespace std;\nint main()\n{\n    cv::Mat image;\n\xc2\xa0   image = cv::imread("sajjad.jpg", 1);\n\xc2\xa0\n\xc2\xa0   cv::namedWindow("Display Image", cv::WINDOW_AUTOSIZE);\n\xc2\xa0   cv::imshow("Display Image", image);\n\xc2\xa0   cv::waitKey(0);\n\xc2\xa0   return 0;\n}\n

我收到此错误：

opencv_test.cpp:2:10: fatal error: opencv2/opencv.hpp: No such file or directory\n #include <opencv2/opencv.hpp>\n          ^~~~~~~~~~~~~~~~~~~~\ncompilation terminated.\n

如何在linux中安装C++的OpenCV？