jpeg-com-segment

read/write COM segment in jpeg format.

install

$ npm install jpeg-com-segment

or

$ npm install https://github.com/nbqx/jpeg-com-segment.git

usage

var fs = require('fs'),
    com = require('jpeg-com-segment');

// read COM segment comment
fs.createReadStream(__dirname+'/test/fixtures/with-comment.jpg')
  .pipe(com.read())
  .on('data',function(data){
    console.log(decodeURIComponent(data)+''); // => 'あいうえお'
  });

// write COM segment comment
var comment = 'あいうえお';
fs.createReadStream(__dirname+'/test/fixtures/test.jpg')
  .pipe(com.write(comment))
  .pipe(fs.createWriteStream('out.jpg'));

and works in browserify. see detail in browser/index.js.

$ npm install

then

$ npm run browser

then see http://127.0.0.1:9966

tips

if you want to show COM comment, try $ identify -verbose xxx.jpg