code: @Override
      public ImageHeader readHeader(InputStream input) throws IOException
      {
          final int toSkip = 3 + 15;
          long skipped = input.skip(toSkip);
          checkSkippedError(skipped, toSkip);
          final int width = readInt(input, 2, true);
          skipped = input.skip(2);
          checkSkippedError(skipped, 2);
          final int height = readInt(input, 2, true);
          final ImageFormat format = ImageFormat.PNG;
  
          return new ImageHeaderModel(width, height, format);
      }
docs: /*
  ImageHeaderReader