2025-01-03 19:07:17 +08:00
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# Image EXIF Reader
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一个简单的图片 EXIF 数据读取器，支持读取 JPEG、TIFF 等格式图片的 EXIF 元数据。
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## 功能特点
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- 支持多种图片格式：JPEG/JPG、TIFF、HEIC/HEIF、PNG、WebP
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- 读取常见 EXIF 数据：相机信息、拍摄参数、镜头信息等
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- 简单易用的 API
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- 支持浏览器直接使用
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- 轻量级，无依赖
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## 快速开始
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### 1. 直接使用
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html
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<!-- 引入插件 -->
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<script src="dist/imageExifReader.min.js"></script>
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<!-- HTML -->
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<input type="file" id="imageInput" accept="image/jpeg,image/jpg">
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<div id="exifData"></div>
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<script>
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// 初始化读取器
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const reader = new ImageExifReader();
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// 处理文件选择
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document.getElementById('imageInput').addEventListener('change', function(e) {
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const file = e.target.files[0];
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if (!file) return;
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reader.readExifData(file, function(error, exifData) {
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if (error) {
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console.error('读取 EXIF 数据时出错:', error);
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return;
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}
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console.log('EXIF 数据:', exifData);
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});
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});
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</script>
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### 2. NPM 安装
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bash
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npm install image-exif-reader
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javascript
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import ImageExifReader from 'image-exif-reader';
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const reader = new ImageExifReader();
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function handleImageUpload(file) {
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reader.readExifData(file, (error, exifData) => {
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if (error) {
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console.error('读取失败:', error);
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return;
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}
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console.log('EXIF 数据:', exifData);
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});
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}
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## API 文档
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### ImageExifReader
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#### readExifData(file, callback)
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读取图片的 EXIF 数据。
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参数：
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- file: File - 图片文件对象
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- callback: Function(error, exifData)
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- error: Error | null - 错误信息
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- exifData: Object - EXIF 数据对象
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返回数据示例：
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javascript
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{
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Make: "Panasonic",
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Model: "DC-G9",
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DateTime: "2022-03-26 18:20:19",
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ExposureTime: "1/125",
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FNumber: "f/1.7",
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FocalLength: "25mm",
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ISOSpeedRatings: 400,
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LensModel: "LUMIX G 25mm F1.7"
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}
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## 支持的 EXIF 标签
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### 基本信息
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- Make: 相机制造商
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- Model: 相机型号
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- DateTime: 拍摄时间
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- Software: 软件信息
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### 拍摄参数
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- ExposureTime: 曝光时间
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- FNumber: 光圈值
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- ISOSpeedRatings: ISO 感光度
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- FocalLength: 焦距
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- ExposureMode: 曝光模式
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- WhiteBalance: 白平衡
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### 镜头信息
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- LensModel: 镜头型号
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- LensSerialNumber: 镜头序列号
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- FocalLengthIn35mmFilm: 35mm 等效焦距
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### 图像信息
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- XResolution: X 轴分辨率
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- YResolution: Y 轴分辨率
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- ResolutionUnit: 分辨率单位
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## 开发
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bash
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安装依赖
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npm install
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构建项目
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npm run build
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运行示例
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npm run dev
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运行测试
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npm test
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## 示例
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查看 `examples` 目录中的完整示例代码。
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## 浏览器兼容性
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- Chrome 50+
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- Firefox 50+
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- Safari 11+
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- Edge 18+
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## 许可证
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MIT
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## 作者
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2025-01-03 19:12:01 +08:00
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zhengice
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2025-01-03 19:07:17 +08:00
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## 贡献
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欢迎提交 Issue 和 Pull Request。
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## 更新日志
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### 1.0.0
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- 初始版本发布
|
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- 支持 JPEG/TIFF 格式
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- 基础 EXIF 数据读取
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