e binary mask

<DT><B>convkernel.ppm</B>
<DD>
Convolution kernel for blurring shadow

<DT><B>blurred.ppm</B>
<DD>
Blurred, colored shadow image

<DT><B>blurred2.ppm</B>
<DD>
Blurred shadow image before coloring

<DT><B>shadow.ppm</B>
<DD>
Clipped shadow image, offset as requested

<DT><B>background.ppm</B>
<DD>
Blank image with background of source image

<DT><B>shadow.ppm</B>
<DD>
Offset shadow

<DT><B>fgmask.ppm</B>
<DD>
Inverse mask file

<DT><B>justfg.ppm</B>
<DD>
Just the foreground.  Rest is black.  O