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<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> Utilities for reading and writing seq files.

 A seq file is a series of concatentated image frames with a fixed size
 header. It is essentially the same as merging a directory of images into
 a single file. seq files are convenient for storing videos because: (1)
 no video codec is required, (2) seek is instant and exact, (3) seq files
