How to pass "python-cv mat" or "numpy array" to my c++ class in BOOST_PYTHON_MODULE ? #1
Description
Thank you for your great works!
I'm trying to pass a image(read from python-cv) to myclass's method as below.
[video.py]
import mymodule
img=cv2.imread(ImgPath)
boxes=mymodule.detect(img)
[module.cpp]
#include <opencv2/highgui/highgui.hpp>
#include <numpy/arrayobject.h>
#include <stdio.h>
#include "pyboostcvconverter/pyboostcvconverter.hpp"
#include "myclass.h"
using namespace cv;
using namespace boost::python;
BOOST_PYTHON_MODULE(mymodule)
{
class_< myclass > ("mymodule", init)//
.def("detect", &myclass::detect)
;
}
[myclass.cpp]
class myclass{
....
detect(Mat img){
....
}
}
But I failed....
Can you please tell me a guide or hint how to pass image to my c++ class using BOOST_PYTHON_MODULE macro?
is it possible to do it with some other methods?
If I declare a new "myclass" type variable and pass a mat from python as you do, it just create a new myclass instance that might run separately from python-bound myclass instance.
[module.cpp]
#include <opencv2/highgui/highgui.hpp>
#include <numpy/arrayobject.h>
#include <stdio.h>
#include "pyboostcvconverter/pyboostcvconverter.hpp"
#include "myclass.h"
using namespace cv;
using namespace boost::python;
BOOST_PYTHON_MODULE(mymodule)
{
class_< myclass > ("mymodule", init)//
.def("detect", &myclass::detect)
;
}
static PyObject * pyMirror(PyObject *self, PyObject *args) {
PyObject *ndArray;
if (!PyArg_ParseTuple(args, "O", &ndArray))
return NULL;
Mat img = pbcvt::fromNDArrayToMat(ndArray);
myclass my("cfgFilePath","savePath"); /*
this is a newly created myclass instance. it maybe run independently from python code I think...
I guess I need to pass "img" in the interface binding above "BOOST_PYTHON_MODULE" macro
block...*/
my.detect(img);
return pbcvt::fromMatToNDArray(mat);
}
Please let me know any solution.
Thank you!