let img;

let originalFile;

function setup() {

  input = createFileInput(handleFile);

  input.position(0, 0);

  frameRate(1);

}

​

function draw() {

  background(255);

  if (img) {

    image(img, 0, 0, width, height);

  }

}

​

function handleFile(file) {

  originalFile = file;

  print(file);

  if (file.type === 'image') {

    img = createGraphics(file.data);

    img.hide();

  } else {

    img = null;

  }

}

​

function dataURLtoFile(dataurl, filename) {

  var arr = dataurl.split(","),

    mime = arr[0].match(/:(.*?);/)[1],

    bstr = atob(arr[1]),

    n = bstr.length,

    u8arr = new Uint8Array(n);

​

  while (n--) {

    u8arr[n] = bstr.charCodeAt(n);

  }

​

  return new File([u8arr], filename, { type: mime });

}

​