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captcha-node

NPM

create captcha with ImageMagick or GraphicsMagick

demo

demo

prepare

  • install ImageMagick
brew install imagemagick

or if you want to use GraphicsMagick

brew install graphicsmagick

Installation for other systems: ImageMagick, GraphicsMagick

  • install package
npm install captcha-node

sample code

callback

var captcha = require('captcha-node')
var fs = require('fs')
var target = __dirname + '/gen.png';
captcha.genCaptcha({},function(err,data){
    if(err){
        console.trace(err.stack);
        return
    }
    fs.writeFileSync(target,data.data);
});

co

co(function* (){
  return yield captcha.genCaptcha({})
}).then((data) => {
  fs.writeFileSync(target,data.data);
}).catch(console.error.bind(console));

option

  • width (Default: 150) - Image width.
  • height (Default: 50) - Image height.
  • fontsize (Default: 30) - Font size.
  • skech (Default: 10) - Strokes count.
  • fontWidth (Default: 3) - Width of text and stroke.
  • bgcolor (Default: '#fff') - Background color.
  • scolor (Default: '#ddd') - Stroke color.
  • fcolor (Default: '#ccc') - Font color.
  • text - Captcha text.
  • font_path (Default: '/font/comic.ttf') - Path to the font file.
  • engine (Default: 'ImageMagick') - Graphics engine tool. Set as 'GraphicsMagick' if you use it.