nodejs过滤器在instagram feed中的帖子

const sharp = require('sharp');

async function processImage(inputPath, outputPath) {
  await sharp(inputPath)
    .resize(800, 600) // 调整图像大小
    .filter(sharp.filter.unsharpMask()) // 应用锐化滤镜
    .toFile(outputPath, (err, info) => {
      if (err) {
        console.error('图像处理失败:', err);
      } else {
        console.log('图像处理成功:', info);
      }
    });
}

processImage('input.jpg', 'output.jpg');

const { Readable, Writable } = require('stream');

class MyFilterStream extends Writable {
  _write(chunk, encoding, callback) {
    // 处理数据块
    const processedChunk = this.processChunk(chunk);
    this.emit('data', processedChunk);
    callback();
  }

  processChunk(chunk) {
    // 自定义处理逻辑
    return chunk;
  }
}

const readableStream = new Readable({
  read() {}
});

const writableStream = new MyFilterStream();

readableStream.pipe(writableStream);