exr channel tools?

hi,

to anyone's knowledge, are there existing opensource command-line  
tools out there for merging EXR channels from different images,  
removing channels from images, renaming channels, adding user  
strings, etc?   i see something called EXR Tools, but that currently  
only performs filtering/color operations on RGBA images.

i'm basically looking for something similar to the EXIFutils suite,  
but for OpenEXR.

http://www.hugsan.com/EXIFutils/html/features.html



any info would be great!


cheers,
erik


--
erik winquist
[email protected]