UIRED&gt;
          &lt;!-- Data type: Float --&gt;

      &lt;!ELEMENT "ImageOrientation" EMPTY&gt;
        &lt;!-- The desired orientation of the image in terms of flips and
             counter-clockwise rotations --&gt;
        &lt;!ATTLIST "ImageOrientation" "value" ("Normal" | "Rotate90" |
          "Rotate180" | "Rotate270" | "FlipH" | "FlipV" |
          "FlipHRotate90" | "FlipVRotate90") #REQUIRED&gt;

      &lt;!ELEMENT "HorizontalPixelSize" EMPTY&gt;
        &lt;!-- The width of a pixel, in milli