    </B>
<DD>dim an image - different way from ppmbrighten

<DT><B><a href="ppmfade.html">ppmfade</a></B>
<DD>Produce series of images fading from one to another
     
<DT><B><a href="pbmreduce.html">pbmreduce</a>     </B>
<DD>reduce a PBM N times, using Floyd-Steinberg

<DT><B><a href="pnmnorm.html">pnmnorm</a>       </B>
<DD>normalize contrast 

<DT><B><a href="pbmpscale.html">pbmpscale</a>     </B>
<DD>enlarge a PBM image with edge smoothing

<DT><B><a href="pamscale.html">pamscale</a>      </B>
<DD>scal