js标注图片保存成xml

function createXML(annotations, imagePath) {
    let xml = '<?xml version="1.0"?>\n';
    xml += '<annotation>\n';
    xml += `  <folder>images</folder>\n`;
    xml += `  <filename>${path.basename(imagePath)}</filename>\n`;
    xml += '  <size>\n';
    xml += `    <width>800</width>\n`; // 假设图片宽度
    xml += `    <height>600</height>\n`; // 假设图片高度
    xml += `    <depth>3</depth>\n`; // 假设图片深度
    xml += '  </size>\n';

    annotations.forEach(annotation => {
        xml += '  <object>\n';
        xml += `    <name>${annotation.label}</name>\n`;
        xml += '    <bndbox>\n';
        xml += `      <xmin>${annotation.xmin}</xmin>\n`;
        xml += `      <ymin>${annotation.ymin}</ymin>\n`;
        xml += `      <xmax>${annotation.xmax}</xmax>\n`;
        xml += `      <ymax>${annotation.ymax}</ymax>\n`;
        xml += '    </bndbox>\n';
        xml += '  </object>\n';
    });

    xml += '</annotation>';
    return xml;
}

// 示例标注数据
const annotations = [
    { label: 'car', xmin: 100, ymin: 100, xmax: 200, ymax: 200 },
    { label: 'person', xmin: 300, ymin: 150, xmax: 400, ymax: 300 }
];

// 假设图片路径
const imagePath = 'path/to/image.jpg';

// 生成XML
const xmlString = createXML(annotations, imagePath);

// 保存XML文件
const fs = require('fs');
fs.writeFileSync('annotations.xml', xmlString);