如何将数据作为串行数据opencv c ++发送 [英] how sent data as serial data opencv c++

问题描述

使用opencv和c ++制作模板匹配程序。这是我的代码

um make template matching program using opencv and c++. this is my code

void track()
{
    if (select_flag)
    {
        //roiImg.copyTo(mytemplate);
//         select_flag = false;
        go_fast = true;
    }

//     imshow( "mytemplate", mytemplate ); waitKey(0);

    Mat result  =  TplMatch( img, mytemplate );
    Point match =  minmax( result ); 

    rectangle( img, match, Point( match.x + mytemplate.cols , match.y + mytemplate.rows ), CV_RGB(255, 0, 255), 1 );

	 char test[] =match;
	 WriteFile(hSerial,test,strlen(test),&btsIO,NULL);

     



    std::cout << "match: " << match << endl;

    /// latest match is the new template
  /*  Rect ROI = cv::Rect( match.x, match.y, mytemplate.cols, mytemplate.rows );
    roiImg = img( ROI );
    roiImg.copyTo(mytemplate);
    imshow( "roiImg", roiImg ); //waitKey(0);*/
}

如何将图像cordinate发送到arduino作为serial通讯。 char test [] =匹配; 这行不起作用。请帮助我

how i send image cordinate into arduino as serial communication. " char test[] =match;" this line not work. pls help me

推荐答案

您必须创建一个包含点成员x和y的字符串。如何创建（格式化）字符串取决于Arduino上接收程序如何解释数据。示例：

You must create a string containing the point members x and y. How to create (format) the string depends on how the data are interpreted by the receiving program on your Arduino. Example:

// Buffer must be large enough for all possible values to be send
char test[32];
// If Arduino expects data as 'x y' integers followed by line feed.
sprintf(test, "%d %d\n", (int)match.x, (int)match.y);

不可否认，匹配不匹配。

即使是技术解决方案

Admittedly you have a mismatch on match.
Even the technical workaround

char * p = (char * ) match;

将是一个错误，因为在Arduino方面，没有关于 Point struct ）。

可能你必须发送点坐标的值（即 match.x ， match.y ）。但是，您应该使用的格式（例如二进制或文本表示）取决于另一方的预期。

would be a mistake, because, on the Arduino side, there is no notion about the Point struct).
Probably you have to send the value of the point coordinates (namely match.x, match.y) to the Arduino device. However the format you should use (e.g. binary or textual representation) depends on what is expected by the other side.

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