C++读取图片发送给python显示出来

2021-03-09 21:03:23 阅读：292 来源： 互联网

标签：DIRS INCLUDE python python2.7 发送给 C++ PyObject usr include

C++代码：

#include <iostream>
#include <stdlib.h>
#include <python2.7/Python.h>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <numpy/arrayobject.h>
#include <opencv2/imgproc.hpp>
#include <memory>
using namespace std;
using namespace cv;
int main()
{

    Py_Initialize();

    std::cout << "Importing Deeplab V3 ..." << std::endl;


    PyRun_SimpleString("import sys,os");
    PyRun_SimpleString("sys.path.append('../python/')");
    PyObject *py_module =NULL,*pFunc=NULL;


    // 导入deeplab.py  module
    // 2021.03.05 发现 matplotlib.pyplot 导入会出错
    py_module = PyImport_ImportModule("hello");
    if (!py_module)
    {

        cout << "Python get module failed." << endl;
        return 0;
    }
    else
        cout << "Python get module succeed!" << endl;


    //   C++ 代码 读取图片传送给 python
  Mat img = imread("./test.png",CV_LOAD_IMAGE_COLOR);
    int m, n;
    n = img.cols *3;
    m = img.rows;

    unsigned char *data = new unsigned char[m*n];
    int p = 0;
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n ; ++j)
        {
            data[p] = img.at<unsigned char>(i,j);
            p++;
        }
    }

    import_array();                                //必须有传数组时需要
    pFunc = PyObject_GetAttrString(py_module,"forward");
    if(pFunc == nullptr)
    {
        cout<<"Error: python pFunc_forward is null!"<<endl;
        return -1;
    }

    npy_intp Dims[3] = {img.rows,img.cols,3};
    PyObject *pyarray = PyArray_SimpleNewFromData(3,Dims,NPY_UBYTE,(void*)data);
    PyObject *argarray = PyTuple_New(1);
    PyTuple_SetItem(argarray,0,pyarray);
    PyObject *pRet = PyObject_CallObject(pFunc,argarray);
    if(pRet == nullptr)
    {
        cout<<"Error: python pFunc_forward pRet is null!"<<endl;
        return -1;
    }


    Py_Finalize();


    return 0;
}`








**python  部分的代码：**


import sys
import numpy as np
from PIL import Image

def forward(image):
    global g_model

    c=image[:,:,0]
    b=image[:,:,1]
    a=image[:,:,2]

    a = np.expand_dims(a,axis=2)
    b = np.expand_dims(b,axis=2)
    c = np.expand_dims(c,axis=2)
    image = np.concatenate((a,b,c),axis=2)
    im = Image.fromarray(image)
    im.save("your_file.png")




CmakeList.txt   
cmake_minimum_required(VERSION 2.8)
set(OpenCV_DIR "/home/miao/otherpackage/opencv3.2/share/OpenCV" )
project(seg_on_deeplab)
set(CMAKE_CXX_STANDARD 14)
find_package(OpenCV REQUIRED)
INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS} /usr/lib/python2.7/dist-packages/numpy/core/include/numpy/)
set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIRS} /usr/local/lib/python2.7/dist-packages/numpy/core/include/numpy)

message(STATUS ${OpenCV_INCLUDE_DIRS})
# 添加python 的头文件
find_package(PythonLibs 2.7 REQUIRED)
find_package(OpenCV REQUIRED)

include_directories(/usr/include/python2.7)
include_directories(${PYTHON_INCLUDE_DIRS})
# 链接python的 动态库
link_directories(/usr/lib/python2.7/config-x86_64-linux-gnu)
add_executable(seg_on_deeplab main.cpp)
# 链接 python 库
target_link_libraries(seg_on_deeplab libpython2.7.so ${OpenCV_LIBS})




















`

标签：DIRS,INCLUDE,python,python2.7,发送给,C++,PyObject,usr,include
来源： https://blog.csdn.net/qq_41623632/article/details/114600403

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

ICode9

C++读取图片发送给python显示出来