google vision OCR文本检测

npm install @google-cloud/vision

const { ImageAnnotatorClient } = require('@google-cloud/vision');
const path = require('path');

// 设置身份验证
const apiKeyPath = path.join(__dirname, 'path/to/your/service-account-file.json');
const client = new ImageAnnotatorClient({ keyFilename: apiKeyPath });

// 读取图像文件
const imagePath = path.join(__dirname, 'path/to/your/image.jpg');
const image = require('fs').readFileSync(imagePath);

// 创建图像注释请求
const request = {
  image: { content: image.toString('base64') },
  features: [{ type: 'TEXT_DETECTION' }],
};

// 发送请求并处理响应
client
  .batchAnnotateImages([request])
  .then((responses) => {
    const annotations = responses[0].textAnnotations;
    if (annotations.length) {
      console.log('Text:');
      annotations.forEach((annotation) => {
        console.log(annotation.description);
      });
    } else {
      console.log('No text found.');
    }
  })
  .catch((err) => {
    console.error('ERROR:', err);
  })
  .finally(() => {
    client.close();
  });

node your-script.js