escription</a>.

<p><a href="http://www.debevec.org/HDRShop">USC's HDRShop
program</a> and a program called Lefty use it.

<b>pamtopfm</b> creates a color PFM image if its input is RGB (PPM)
and a non-color PFM otherwise.

<p>Use <a href="pfmtopam.html"><b>pfmtopam</b></a> to convert a PFM
image to Netpbm format.


<A NAME="options">&nbsp;</A>
<H2>OPTIONS</H2>

<DL COMPACT>
<DT><B>-scale=</b><i>float</i>

<DD>
     <P>This specifies the scale factor of the PFM image.  
     Scale factor is a component of th