void putImageData(ImageData imagedata, num dx, num dy, [ num dirtyX, num dirtyY, num dirtyWidth, num dirtyHeight ])

Source 

void putImageData(ImageData imagedata, num dx, num dy, [num dirtyX, num dirtyY, num dirtyWidth, num dirtyHeight]) {
  if ((dy is num) && (dx is num) && (imagedata is ImageData) && dirtyX == null && dirtyY == null && dirtyWidth == null && dirtyHeight == null) {
    _blink.BlinkCanvasRenderingContext2D.instance.putImageData_Callback_3_(this, convertDartToNative_ImageData(imagedata), dx, dy);
    return;
  }
  if ((dirtyHeight is num) && (dirtyWidth is num) && (dirtyY is num) && (dirtyX is num) && (dy is num) && (dx is num) && (imagedata is ImageData)) {
    _blink.BlinkCanvasRenderingContext2D.instance.putImageData_Callback_7_(this, convertDartToNative_ImageData(imagedata), dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight);
    return;
  }
  throw new ArgumentError("Incorrect number or type of arguments");
}