KoaHub.JS generates verification code plug-in code based on Koa developed by Node.js

node.js generate captcha using c++ library CImg without install any other lib or software
ccap

node.js generate captcha using c++ library CImg without install any other lib or software
node-ccap —— node.js generate captcha using c++ library CImg.
You can generate captcha without install any other libraries or software, only do npm install ccap, that's all.
node-ccap support linux and windows.
compile maybe cost you 1 minute,simply wait;
performance
generate captcha picture 697/sec;
Installnpm install ccap<br> var ccap = require('ccap')Instantiatedthese three ways all will be ok:<br> var captcha = ccap();<br> <br> var captcha = ccap(width, height, offset);<br> <br> var captcha = ccap({<br>     <br>     width:256,//set width,default is 256<br> <br>     height:60,//set height,default is 60<br> <br>     offset:40,//set text spacing,default is 40<br> <br>     quality:100,//set pic quality,default is 50<br> <br>     generate:function(){//Custom the function to generate captcha text<br>     <br>          //generate captcha text here<br> <br>          return text;//return the captcha text<br> <br>     }<br> <br> });
APIvar captcha = ccap();<br> <br> var ary = captcha.get();//ary[0] is captcha's text,ary[1] is captcha picture buffer.<br> <br> var text = ary[0];<br> <br> var buffer = ary[1];<br>  <br> Simple Example<br> var http = require('http');<br> <br> var ccap = require('../')();//Instantiated ccap class<br> <br> http.createServer(function (request, response) {<br> <br>     if(request.url == '/favicon.ico')return response.end('');//Intercept request favicon.ico<br> <br>     var ary = ccap.get();<br> <br>     var txt = ary[0];<br> <br>     var buf = ary[1];<br> <br>     response.end(buf);<br> <br>     console.log(txt);<br> <br> }).listen(8124);<br> <br> console.log('Server running at http://127.0.0.1:8124/');
授权协议
基于MIT协议发布：The MIT License<br>  <br> Permission is hereby granted, free of charge, to any person obtaining<br> a copy of this software and associated documentation files (the<br> "Software"), to deal in the Software without restriction, including<br> without limitation the rights to use, copy, modify, merge, publish,<br> distribute, sublicense, and/or sell copies of the Software, and to<br> permit persons to whom the Software is furnished to do so, subject to<br> the following conditions:<br>  <br> The above copyright notice and this permission notice shall be<br> included in all copies or substantial portions of the Software.<br>  <br> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,<br> EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF<br> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND<br> NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE<br> LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION<br> OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION<br>WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Code details: http://js.koahub.com/home/feature/ccap