$('#image').cropper('getCroppedCanvas', {
  width: 160,
  height: 90,
  minWidth: 256,
  minHeight: 256,
  maxWidth: 4096,
  maxHeight: 4096,
  fillColor: '#fff',
  imageSmoothingEnabled: false,
  imageSmoothingQuality: 'high',
});

// Upload cropped image to server if the browser supports `HTMLCanvasElement.toBlob`
$('#image').cropper('getCroppedCanvas').toBlob(function (blob) {
  var formData = new FormData();
  formData.append('croppedImage', blob);
  $.ajax('/path/to/upload', {
    method: "POST",
    data: formData,
    processData: false,
    contentType: false,
    success: function () {
      console.log('Upload success');
    },
    error: function () {
      console.log('Upload error');
    }
  });
});