OpenCV中使用Filestorage的XML输出

Question

我想使用OpenCV filestorage类输出XML文件。但输出与我想要的不一样。我需要帮助以不同的格式编写数据。以下是功能代码。

void write_data(int x, int y, int w, int h, int count, int region)
{

    FileStorage fs("data.xml", FileStorage::APPEND);
    fs <<"frame";
    fs << "{" << "number" <<count
    << "}";

    fs << "box";                              
    fs << "{" << "h" << h;
    fs <<        "w" << w;
    fs <<        "xc"  << x;
    fs <<        "yc"  << y 
    << "}";

    fs.release();                                       
    cout << "Write Done." << endl;
}

输出

<?xml version="1.0"?>
<opencv_storage>
<frame>
 <number>1</number></frame>
 <box>
    <h>52</h>
    <w>52</w>
    <xc>1156</xc>
    <yc>336</yc></box>
 <!-- resumed -->

<frame>
   <number>1</number></frame>
   <box>
   <h>69</h>
   <w>69</w>
   <xc>1112</xc>
   <yc>376</yc></box>
<!-- resumed -->

以下是所需的输出。对于＆＃34;自信＆＃34;的价值我想生成一个介于0.5000到1.0之间的随机数。

    <frame number="1">
    <objectlist>
        <object confidence="0.89324">
            <box h="52" w="52" xc="1156" yc="336" />
        </object>
        <object confidence="0.95996">
            <box h="69" w="69" xc="1112" yc="376" />
        </object>
    </objectlist>
</frame>
<frame number="2">
    <objectlist>
        <object confidence="0.89324">
            <box h="42" w="38" xc="521" yc="94" />
        </object>
        <object confidence="0.95996">
            <box h="38" w="39" xc="633" yc="99" />
        </object>
    </objectlist>
</frame>