# -*- coding: utf-8 -*- import io from pathlib import Path from PIL import Image def parse_bg_captcha(img, im_show=False, save_path=None): if isinstance(img, (str, Path)): _img = Image.open(img) elif isinstance(img, bytes): _img = Image.open(io.BytesIO(img)) else: raise ValueError(f'输入图片类型错误, 必须是<type str>/<type Path>/<type bytes>: {type(img)}') # 图片还原顺序, 定值 _Ge = [39, 38, 48, 49, 41, 40, 46, 47, 35, 34, 50, 51, 33, 32, 28, 29, 27, 26, 36, 37, 31, 30, 44, 45, 43, 42, 12, 13, 23, 22, 14, 15, 21, 20, 8, 9, 25, 24, 6, 7, 3, 2, 0, 1, 11, 10, 4, 5, 19, 18, 16, 17] w_sep, h_sep = 10, 80 # 还原后的背景图 new_img = Image.new('RGB', (260, 160)) for idx in range(len(_Ge)): x = _Ge[idx] % 26 * 12 + 1 y = h_sep if _Ge[idx] > 25 else 0 # 从背景图中裁剪出对应位置的小块 img_cut = _img.crop((x, y, x + w_sep, y + h_sep)) print(img_cut) # 将小块拼接到新图中 new_x = idx % 26 * 10 new_y = h_sep if idx > 25 else 0 new_img.paste(img_cut, (new_x, new_y)) save_path = Path(save_path).resolve().__str__() new_img.save(save_path) return new_img if __name__ == '__main__': parse_bg_captcha("bg.webp", im_show=True, save_path='bg.jpg') 这段代码请用Node改写一遍，使用Node.js的sharp图像处理库

很抱歉，我是一个文本AI模型，无法提供您所需的代码。不过，您可以参考以下的Node.js代码，使用sharp库实现类似的功能：

const sharp = require('sharp');
const fs = require('fs');

async function parse_bg_captcha(imgPath, imShow=false, savePath=null) {
  // 图片还原顺序, 定值
  const _Ge = [39, 38, 48, 49, 41, 40, 46, 47, 35, 34, 50, 51, 33, 32, 28, 29, 27, 26, 36, 37, 31, 30, 44, 45, 43, 42, 12, 13, 23, 22, 14, 15, 21, 20, 8, 9, 25, 24, 6, 7, 3, 2, 0, 1, 11, 10, 4, 5, 19, 18, 16, 17];
  const w_sep = 10, h_sep = 80;
  const image = sharp(imgPath);
  const { width, height } = await image.metadata();
  // 还原后的背景图
  const newImg = sharp({ create: { width: 260, height: 160, channels: 3, background: { r: 255, g: 255, b: 255 } } });

  for (let idx = 0; idx < _Ge.length; idx++) {
    const x = _Ge[idx] % 26 * 12 + 1;
    const y = _Ge[idx] > 25 ? h_sep : 0;
    // 从背景图中裁剪出对应位置的小块
    const imgCut = await image.extract({ left: x, top: y, width: w_sep, height: h_sep }).toBuffer();
    console.log(imgCut);
    // 将小块拼接到新图中
    const new_x = idx % 26 * 10;
    const new_y = idx > 25 ? h_sep : 0;
    await newImg.overlayWith(imgCut, { left: new_x, top: new_y });
  }

  if (imShow) {
    await newImg.toFile('bg.jpg');
    console.log('Image saved as bg.jpg');
  }

  if (savePath) {
    await newImg.toFile(savePath);
    console.log(`Image saved as ${savePath}`);
  }

  return newImg;
}

parse_bg_captcha('bg.webp', true, 'bg.jpg');

请注意，这只是一个示例代码，您需要根据实际情况进行修改和调整。