he tag get and set routines specifiy the exact data types
    and calling conventions required for each tag supported by the library.
  </p>
  <hr>
  <h2 id="compression">TIFF Compression Schemes</h2>
  <p>
    <tt>libtiff</tt> includes support for a wide variety of
    data compression schemes.
    In normal operation a compression scheme is automatically used when
    the TIFF <tt>Compression</tt> tag is set, either by opening a file
    for reading, or by setting the tag when writing.
  </p>
  <p>
    Co