{"id":187820,"date":"2024-11-11T17:27:20","date_gmt":"2024-11-11T09:27:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187820\/"},"modified":"2024-11-11T17:27:21","modified_gmt":"2024-11-11T09:27:21","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%af%a6%e7%8f%be%e5%9c%96%e7%89%87%e7%b7%a8%e8%bc%af%e5%8a%9f%e8%83%bd-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%af%e4%bb%a5%e5%9c%96%e7%89%87%e7%b7%a8%e8%bc%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187820\/","title":{"rendered":"\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd (\u6578\u64da\u5eab\u53ef\u4ee5\u5716\u7247\u7de8\u8f2f)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%af%a6%e7%8f%be%e5%9c%96%e7%89%87%e7%b7%a8%e8%bc%af%e5%8a%9f%e8%83%bd-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%af%e4%bb%a5%e5%9c%96%e7%89%87%e7%b7%a8%e8%bc%af-xwilfgfVoP\">\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd (\u6578\u64da\u5eab\u53ef\u4ee5\u5716\u7247\u7de8\u8f2f)<\/h1>\n<p>\u96a8\u8457\u6578\u5b57\u5316\u6642\u4ee3\u7684\u5230\u4f86\uff0c\u5716\u7247\u5728\u5404\u7a2e\u61c9\u7528\u4e2d\u626e\u6f14\u8457\u8d8a\u4f86\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002\u7121\u8ad6\u662f\u793e\u4ea4\u5a92\u9ad4\u3001\u96fb\u5b50\u5546\u52d9\u9084\u662f\u5167\u5bb9\u7ba1\u7406\u7cfb\u7d71\uff0c\u5716\u7247\u7684\u8cea\u91cf\u548c\u7de8\u8f2f\u80fd\u529b\u90fd\u76f4\u63a5\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002\u56e0\u6b64\uff0c\u5c07\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u96c6\u6210\u5230\u6578\u64da\u5eab\u4e2d\uff0c\u6210\u70ba\u4e86\u8a31\u591a\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6280\u8853\u7d30\u7bc0\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%88%87%e5%9c%96%e7%89%87%e5%ad%98%e5%84%b2-xwilfgfVoP\">\u6578\u64da\u5eab\u8207\u5716\u7247\u5b58\u5132<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u4e86\u89e3\u6578\u64da\u5eab\u5982\u4f55\u5b58\u5132\u5716\u7247\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u5716\u7247\u53ef\u4ee5\u4ee5\u5169\u7a2e\u65b9\u5f0f\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff1a<\/p>\n<ul>\n<li><strong>\u76f4\u63a5\u5b58\u5132\uff1a<\/strong>\u5c07\u5716\u7247\u4ee5\u4e8c\u9032\u5236\u683c\u5f0f\uff08BLOB\uff09\u76f4\u63a5\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u9ede\u662f\u6578\u64da\u96c6\u4e2d\u7ba1\u7406\uff0c\u4f46\u7f3a\u9ede\u662f\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u5927\u5c0f\u8fc5\u901f\u589e\u9577\u3002<\/li>\n<li><strong>\u9593\u63a5\u5b58\u5132\uff1a<\/strong>\u5c07\u5716\u7247\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\uff0c\u4e26\u5728\u6578\u64da\u5eab\u4e2d\u4fdd\u5b58\u5176\u8def\u5f91\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\uff0c\u4f46\u9700\u8981\u984d\u5916\u7684\u7ba1\u7406\u4f86\u78ba\u4fdd\u6587\u4ef6\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%96%e7%89%87%e7%b7%a8%e8%bc%af%e5%8a%9f%e8%83%bd%e7%9a%84%e5%af%a6%e7%8f%be-xwilfgfVoP\">\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u7684\u5be6\u73fe<\/h2>\n<p>\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u901a\u5e38\u9700\u8981\u7d50\u5408\u524d\u7aef\u548c\u5f8c\u7aef\u6280\u8853\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u53ca\u5176\u5be6\u73fe\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%9c%96%e7%89%87%e4%b8%8a%e5%82%b3-xwilfgfVoP\">1. \u5716\u7247\u4e0a\u50b3<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u901a\u904e\u524d\u7aef\u754c\u9762\u4e0a\u50b3\u5716\u7247\uff0c\u5f8c\u7aef\u63a5\u6536\u4e26\u5c07\u5176\u5b58\u5132\u5230\u6578\u64da\u5eab\u6216\u6587\u4ef6\u7cfb\u7d71\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u4e0a\u50b3\u793a\u4f8b\uff1a<\/p>\n<pre><code>const express = require('express');\nconst multer = require('multer');\nconst app = express();\nconst upload = multer({ dest: 'uploads\/' });\n\napp.post('\/upload', upload.single('image'), (req, res) =&gt; {\n    res.send('\u5716\u7247\u4e0a\u50b3\u6210\u529f\uff01');\n});\n<\/code><\/pre>\n<h3 id=\"2-%e5%9c%96%e7%89%87%e8%a3%81%e5%89%aa-xwilfgfVoP\">2. \u5716\u7247\u88c1\u526a<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u9078\u64c7\u88c1\u526a\u5716\u7247\u3002\u9019\u901a\u5e38\u9700\u8981\u4f7f\u7528\u524d\u7aef\u5eab\uff0c\u5982 Cropper.js\uff0c\u4f86\u5be6\u73fe\u5716\u7247\u7684\u9078\u64c7\u548c\u88c1\u526a\u3002\u88c1\u526a\u5f8c\uff0c\u524d\u7aef\u5c07\u88c1\u526a\u7684\u6578\u64da\u767c\u9001\u5230\u5f8c\u7aef\u9032\u884c\u8655\u7406\u3002<\/p>\n<pre><code>app.post('\/crop', (req, res) =&gt; {\n    const { x, y, width, height } = req.body;\n    \/\/ \u4f7f\u7528\u5716\u50cf\u8655\u7406\u5eab\u9032\u884c\u88c1\u526a\n});\n<\/code><\/pre>\n<h3 id=\"3-%e5%9c%96%e7%89%87%e8%aa%bf%e6%95%b4-xwilfgfVoP\">3. \u5716\u7247\u8abf\u6574<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u8abf\u6574\u5716\u7247\u7684\u4eae\u5ea6\u3001\u5c0d\u6bd4\u5ea6\u7b49\u5c6c\u6027\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528\u5716\u50cf\u8655\u7406\u5eab\uff08\u5982 Sharp \u6216 Jimp\uff09\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>const Jimp = require('jimp');\n\napp.post('\/adjust', (req, res) =&gt; {\n    Jimp.read(req.body.imagePath)\n        .then(image =&gt; {\n            return image\n                .brightness(req.body.brightness)\n                .contrast(req.body.contrast)\n                .write('path\/to\/output.jpg');\n        })\n        .then(() =&gt; {\n            res.send('\u5716\u7247\u8abf\u6574\u6210\u529f\uff01');\n        });\n});\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%9c%96%e7%89%87%e5%85%83%e6%95%b8%e6%93%9a%e7%ae%a1%e7%90%86-xwilfgfVoP\">\u6578\u64da\u5eab\u4e2d\u7684\u5716\u7247\u5143\u6578\u64da\u7ba1\u7406<\/h2>\n<p>\u9664\u4e86\u5b58\u5132\u5716\u7247\u672c\u8eab\uff0c\u9084\u9700\u8981\u7ba1\u7406\u5716\u7247\u7684\u5143\u6578\u64da\uff0c\u5982\u4e0a\u50b3\u6642\u9593\u3001\u7528\u6236\u4fe1\u606f\u3001\u7de8\u8f2f\u6b77\u53f2\u7b49\u3002\u9019\u4e9b\u4fe1\u606f\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7ba1\u7406\u548c\u67e5\u627e\u5716\u7247\u3002<\/p>\n<pre><code>CREATE TABLE images (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    user_id INT,\n    image_path VARCHAR(255),\n    upload_time DATETIME,\n    brightness FLOAT,\n    contrast FLOAT\n);\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-xwilfgfVoP\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u4e0d\u50c5\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\uff0c\u9084\u80fd\u589e\u5f37\u61c9\u7528\u7684\u529f\u80fd\u6027\u3002\u901a\u904e\u7d50\u5408\u524d\u7aef\u6280\u8853\u548c\u5f8c\u7aef\u6578\u64da\u5eab\u7ba1\u7406\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5275\u5efa\u51fa\u5f37\u5927\u7684\u5716\u7247\u7de8\u8f2f\u5de5\u5177\uff0c\u6eff\u8db3\u7528\u6236\u7684\u9700\u6c42\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u672a\u4f86\u7684\u5716\u7247\u7de8\u8f2f\u529f\u80fd\u5c07\u6703\u66f4\u52a0\u591a\u6a23\u5316\u548c\u667a\u80fd\u5316\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u5be6\u73fe\u9019\u4e9b\u529f\u80fd\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u66f4\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684\u958b\u767c\u9700\u6c42\uff0c\u63d0\u4f9b\u7a69\u5b9a\u7684\u670d\u52d9\u548c\u9748\u6d3b\u7684\u8cc7\u6e90\u914d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u5716\u7247\u7de8\u8f2f\u529f\u80fd\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u8207\u8996\u89ba\u5448\u73fe\u7684\u6548\u7387\u8207\u9748\u6d3b\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-187820","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=187820"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187820\/revisions"}],"predecessor-version":[{"id":187821,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187820\/revisions\/187821"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}