Question

我试图从我的 opencv python 代码

将参数传递给（c ++ opencv）

我完成的步骤：

使用SWIG为我的opencv C ++程序生成.so文件
编写了一个示例 Opencv Python程序

A. 为我的opencv C ++代码生成.so ：

1。swig -c++ -python opencvtest.i

2 .g++ -fpic -c opencvtest.cpp opencvtest_wrap.cxx -I/usr/include/python2.7 -I/usr/local/include -I/usr/local/include/opencv -I/usr/local/include/opencv2

3。g++ -shared opencvtest.o opencvtest_wrap.o -o _opencvtest.so -L/usr/local/lib /usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgcodecs.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_shape.so /usr/local/lib/libopencv_stitching.so /usr/local/lib/libopencv_superres.so /usr/local/lib/libopencv_ts.a /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videoio.so /usr/local/lib/libopencv_videostab.so

4.C ++代码

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int sample(Mat image,Mat &out)
{
 int z=0;
    if(! image.data )                              // Check for invalid input
   {
       cout <<  "Could not open or find the image" << std::endl ;


   }
  cvtColor(image, out,COLOR_BGR2GRAY);
                                 // Wait for a keystroke in the window
    return z;
}

5.Created Wrapper文件（opencvtest_wrap.cxx）和生成的.so文件。

6.Sample python代码调用C ++代码。

 import cv2 , numpy
    import opencvtest
image = cv2.imread('messi5.jpg',0)
    res=opencvtest.sample(image , image1)
    cv2.imshow('Source Image',image)
    cv2.waitKey(0)
    cv2.namedWindow('dst_rt', cv2.WINDOW_NORMAL)
    cv2.resizeWindow('dst_rt', window_width, window_height)
    cv2.imshow('dst_rt', image1)
    cv2.waitKey(0)
    cv2.destroyAllWindows()
    print res

当我尝试在我的机器上执行sample.py时，我收到此错误

追踪（最近一次呼叫最后一次）：

文件＆＃34; sample1.py＆＃34;，第15行，in res = opencvtest.sample（image，image1）

TypeError：在方法＆＃39;示例＆＃39;，参数1的类型＆＃39; cv :: Mat＆＃39;

任何一位专家都可以帮我解决问题。

Answer 1

什么是image？我认为你必须使用来自C ++的类型：opencvtest.Mat

将Mat参数从Python传递给c ++方法

1 个答案: