/**
* @function lib.image.png2ico
* @param {string} src - PNG source file.
* @param {string} dest - ICO source file.
* @author Taka Okunishi
*
*/
var fs = require('fs'),
path = require('path');
module.exports = function (src, dest, callback) {
var imagemagick = require('imagemagick');
imagemagick.convert([
src,
'-bordercolor', 'white',
'-clone', '0',
'-border', '0',
'-delete', '0',
'-alpha', 'off',
'-colors', '256',
dest
], function (err, stdOut, stdErr) {
callback(err || stdErr || null);
});
};