KoaHub.JS基于Node.js开发的Koa 生成验证码插件代

ccap

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

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;

generate captcha picture 697/sec;

npm install ccap
var ccap = require('ccap')

these three ways all will be ok:

var captcha = ccap();

var captcha = ccap(width, height, offset);

var captcha = ccap({

    width:256,//set width,default is 256

    height:60,//set height,default is 60

    offset:40,//set text spacing,default is 40

    quality:100,//set pic quality,default is 50

    generate:function(){//Custom the function to generate captcha text

     //generate captcha text here

     return text;//return the captcha text

    }

});

基于MIT协议发布：

The MIT License

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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代码详情：