[HDRI] hdrgen question, systematic error?

[Mark Stock]

Folks,

I just used the Linux version of the hdrgen program, and there 
appears to be a systematic error somwhere.

My first attempts were handheld, and alignment always failed. My 
attempt today was using a tripod in my living room, and the 
alignment error is very regular:

http://mark.technolope.org/transfer/dscn6880pfilt.jpg

This was done with:
hdrgen dscn68??.jpg -o test.pic -r cam.rsp
pfilt -1 -x /2 -y /2 test.pic | ra_ppm | cjpeg -q 90 > 
dscn6880pfilt.jpg

uname -a gives:
Linux localhost.localdomain 2.4.22-1.2115.nptl #1 Wed Oct 29 
15:42:51 EST 2003 i686 i686 i386 GNU/Linux

Is there anything I can do about this?

Mark
mstock at umich.edu