Delete egg-api.js
Browse files- egg-api.js +0 -128
egg-api.js
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const express = require('express');
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const fs = require('fs');
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const path = require('path');
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const cv = require('opencv4nodejs');
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const Jimp = require('jimp');
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const axios = require('axios');
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const sharp = require('sharp');
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const app = express();
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const port = 7860; // 将端口改为 7860
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const outputDir = './output';
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// 确保输出目录存在
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if (!fs.existsSync(outputDir)) {
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fs.mkdirSync(outputDir);
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}
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// 并行处理图片下载和处理
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function processImage(url, inputImagePath, outputImagePath, classifiersFolder, replacementImagePath, callback) {
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axios.get(url, { responseType: 'arraybuffer' })
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.then(response => {
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return sharp(response.data).toFile(inputImagePath);
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})
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.then(() => {
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return replaceFaces(inputImagePath, outputImagePath, classifiersFolder, replacementImagePath);
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})
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.then(() => {
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console.log('Image processed successfully.');
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callback(null);
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})
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.catch(error => {
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console.error('Error processing image:', error);
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callback(error);
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});
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}
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// 加载所有分类器
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function loadClassifiersFromFolder(folderPath, callback) {
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const classifiers = [];
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fs.readdir(folderPath, (err, files) => {
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if (err) {
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callback(err);
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return;
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}
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let completed = 0;
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files.forEach(file => {
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const filePath = path.join(folderPath, file);
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const classifier = new cv.CascadeClassifier(filePath);
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classifiers.push(classifier);
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completed++;
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if (completed === files.length) {
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callback(null, classifiers);
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}
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});
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});
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}
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// 人脸替换函数
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function replaceFaces(inputImagePath, outputImagePath, classifiersFolder, replacementImagePath, callback) {
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cv.imreadAsync(inputImagePath, (err, img) => {
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if (err) {
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callback(err);
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return;
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}
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loadClassifiersFromFolder(classifiersFolder, (err, classifiers) => {
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if (err) {
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callback(err);
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return;
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}
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Jimp.read(replacementImagePath, (err, replacementFace) => {
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if (err) {
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callback(err);
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return;
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}
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const grayImg = img.bgrToGray();
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const allFaces = [];
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classifiers.forEach(classifier => {
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const faces = classifier.detectMultiScale(grayImg).objects;
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allFaces.push(...faces);
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});
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allFaces.forEach(faceRect => {
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const resizedReplacementFace = replacementFace.resize(faceRect.width, faceRect.height);
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const faceRegion = img.getRegion(faceRect);
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const replacementBuffer = resizedReplacementFace.bitmap.data;
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for (let y = 0; y < faceRect.height; y++) {
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for (let x = 0; x < faceRect.width; x++) {
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const idx = (y * faceRect.width + x) << 2;
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const [r, g, b, a] = replacementBuffer.slice(idx, idx + 4);
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if (a > 0) {
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faceRegion.set(y, x, new cv.Vec3(b, g, r));
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}
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}
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}
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});
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cv.imwrite(outputImagePath, img);
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callback(null);
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});
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});
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});
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}
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// Express接口
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app.get('/process-image', (req, res) => {
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const { imageUrl } = req.query;
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if (!imageUrl) {
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return res.status(400).send('Image URL is required');
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}
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const inputImagePath = path.join(outputDir, 'input.jpg'); // 使用jpg格式保存
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const outputImagePath = path.join(outputDir, 'output.jpg');
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const replacementImagePath = './replacement_face.png';
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const classifiersFolder = './classifiers';
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processImage(imageUrl, inputImagePath, outputImagePath, classifiersFolder, replacementImagePath, (err) => {
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if (err) {
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console.error('Error processing image:', err);
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return res.status(500).send('Error processing image');
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}
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res.sendFile(outputImagePath, { root: '.' });
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});
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});
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app.listen(port, () => {
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console.log(`Server is running on http://localhost:${port}`);
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});
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