base64 -> png -> phash

index.js

var fs = require('fs')
var pHash = require('phash')

var image = 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'

fs.writeFile('test.png', new Buffer(image, 'base64'), function() {
  pHash.imageHash('test.png', function(err, hash) {
    if (err) {
      throw err
    }

    console.log(hash)
  })
})